A372230 - cp's OEIS frontend

A372230 Triangular array read by rows. T(n,k) is the number of size k circuits in the linear matroid M[A] where A is the n X 2^n-1 matrix whose columns are the nonzero vectors in GF(2)^n, n>=2, 3<=k<=n+1.

n	a(n)
2	1
3	7
4	7
5	35
6	105
7	168
8	155
9	1085
10	5208
11	13888
12	651
13	9765
14	109368
15	874944
16	3999744
17	2667
18	82677
19	1984248
20	37039296
21	507967488
22	4063739904
23	10795
24	680085
25	33732216
26	1349288640
27	43177236480
28	1036253675520
29	14737830051840

[1, 7, 7, 35, 105, 168, 155, 1085, 5208, 13888, 651, 9765, 109368, 874944, 3999744, 2667, 82677, 1984248, 37039296, 507967488, 4063739904, 10795, 680085, 33732216, 1349288640, 43177236480, 1036253675520, 14737830051840]

cp's OEIS Frontend

A372230 Triangular array read by rows. T(n,k) is the number of size k circuits in the linear matroid M[A] where A is the n X 2^n-1 matrix whose columns are the nonzero vectors in GF(2)^n, n>=2, 3<=k<=n+1.

Table of values

List of values