how many nba teams have won the championship after having a 7 game first round series

Howie Dallmar won a championship in his rookie season in 1946-47.

Interpreted as:

How many NBA teams have won the championship in a regular season after having a 7 game first round series?

	NAME	Champs	SEASON	TM	GP	PPG	APG	FGM	FGA	FG%	FTM	FTA	FT%	TS%	PTS	AST	PF
1	Howie Dallmar H. Dallmar	1	1946-47	PHI	60	8.8	1.7	3.3	11.8	28.0	2.2	3.4	64.0	33.0	528	104	141
2	Jerry Fleishman J. Fleishman	1	1946-47	PHI	59	4.5	0.7	1.6	6.3	26.1	1.2	2.2	54.3	30.7	263	40	101
3	Joe Fulks J. Fulks	1	1946-47	PHI	60	23.2	0.4	7.9	26.0	30.5	7.3	10.0	73.0	38.1	1,389	25	199
4	Matt Guokas M. Guokas	1	1946-47	PHI	47	1.7	0.2	0.6	2.2	26.9	0.6	1.0	55.3	32.9	82	9	70
5	Art Hillhouse A. Hillhouse	1	1946-47	PHI	60	6.0	0.7	2.0	6.9	29.1	2.0	2.8	72.3	37.1	360	41	139
6	Ralph Kaplowitz R. Kaplowitz	1	1946-47	TOT	57	7.1	0.7	2.6	9.3	27.4	1.9	2.6	73.5	33.7	403	38	122
7	Angelo Musi A. Musi	1	1946-47	PHI	60	9.4	0.4	3.8	13.6	28.1	1.7	2.1	82.9	32.2	562	26	120
8	Petey Rosenberg P. Rosenberg	1	1946-47	PHI	51	2.9	0.5	1.2	5.6	20.9	0.6	1.0	61.2	24.3	150	27	64
9	Jerry Rullo J. Rullo	1	1946-47	PHI	50	2.5	0.4	1.0	3.5	29.9	0.5	0.9	48.9	32.6	127	20	61
10	George Senesky G. Senesky	1	1946-47	PHI	58	6.3	0.6	2.4	9.2	26.7	1.4	2.1	66.1	31.3	366	34	83
11	Herm Fuetsch H. Fuetsch	1	1947-48	BAL	42	2.6	0.4	1.0	3.3	30.0	0.6	1.0	62.5	34.6	109	17	39
12	Kleggie Hermsen K. Hermsen	1	1947-48	BAL	48	12.0	1.0	4.4	15.9	27.7	3.1	4.7	66.5	33.2	575	48	154
13	Paul Hoffman P. Hoffman	1	1947-48	BAL	37	10.5	0.6	3.8	11.0	34.8	2.8	4.2	66.2	40.7	388	23	123
14	Buddy Jeannette B. Jeannette	1	1947-48	BAL	46	10.7	1.5	3.3	9.3	34.9	4.2	5.5	75.8	45.4	491	70	147
15	Red Klotz R. Klotz	1	1947-48	BAL	11	1.4	0.6	0.6	2.8	22.6	0.1	0.3	33.3	23.2	15	7	3
16	Grady Lewis G. Lewis	1	1947-48	TOT	45	7.0	0.9	2.5	9.4	26.8	1.9	3.0	64.4	32.5	315	41	151
17	Carl Meinhold C. Meinhold	1	1947-48	BAL	48	5.3	0.3	2.3	7.4	30.3	0.8	1.3	61.7	33.1	253	16	64
18	Chick Reiser C. Reiser	1	1947-48	BAL	47	11.5	0.9	4.3	13.4	32.2	2.9	3.9	74.1	38.1	541	40	175
19	Dick Schulz D. Schulz	1	1947-48	BAL	48	8.0	0.6	2.8	9.8	28.4	2.4	3.3	73.1	35.5	383	28	116
20	Connie Simmons C. Simmons	1	1947-48	TOT	45	8.6	0.5	3.6	12.1	29.7	1.4	2.4	57.4	32.6	386	24	122
21	Don Carlson D. Carlson	1	1948-49	MIN	55	9.2	3.1	3.8	11.5	33.4	1.6	2.4	66.2	36.9	508	170	180
22	Jack Dwan J. Dwan	1	1948-49	MIN	60	4.6	2.2	2.0	6.3	31.8	0.6	1.2	49.3	33.6	276	129	157
23	Arnie Ferrin A. Ferrin	1	1948-49	MIN	47	7.3	1.6	2.8	8.0	34.4	1.8	2.7	66.4	39.7	345	76	142
24	Donnie Forman D. Forman	1	1948-49	MIN	44	4.1	1.7	1.5	5.3	29.4	1.0	1.5	64.2	34.4	179	74	94
25	Earl Gardner E. Gardner	1	1948-49	MIN	50	1.8	0.4	0.8	2.0	37.6	0.3	0.6	46.4	39.3	89	19	50