A287206 - cp's OEIS frontend

A287206 Triangle read by rows: T(n,k) is the number of direct sum decompositions of a finite vector space of n dimensions over GF(2) that have exactly k subspaces of dimension 1, n>=0, 0<=k<=n.

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	3
6	1
7	28
8	0
9	28
10	281
11	120
12	1680
13	0
14	840
15	9921
16	139376
17	29760
18	277760
19	0
20	83328
21	16078337
22	20000736
23	140491008
24	19998720
25	139991040
26	0
27	27998208
28	13596908545
29	130684723136
30	81282991104
31	380636971008
32	40637399040
33	227569434624
34	0
35	32509919232
36	191426147495937
37	443803094908800
38	2132774681579520
39	884358943211520
40	3105997683425280
41	265280940933120
42	1237977724354560
43	0
44	132640470466560

[1, 0, 1, 1, 0, 3, 1, 28, 0, 28, 281, 120, 1680, 0, 840, 9921, 139376, 29760, 277760, 0, 83328, 16078337, 20000736, 140491008, 19998720, 139991040, 0, 27998208, 13596908545, 130684723136, 81282991104, 380636971008, 40637399040, 227569434624, 0, 32509919232, 191426147495937, 443803094908800, 2132774681579520, 884358943211520, 3105997683425280, 265280940933120, 1237977724354560, 0, 132640470466560]

cp's OEIS Frontend

A287206 Triangle read by rows: T(n,k) is the number of direct sum decompositions of a finite vector space of n dimensions over GF(2) that have exactly k subspaces of dimension 1, n>=0, 0<=k<=n.

Table of values

List of values