A358157 - cp's OEIS frontend

A358157 a(n) is the permanent of the n X n matrix M(n) that is defined by M[i,j] = floor(i*j/3).

n	a(n)
0	1
1	0
2	0
3	1
4	32
5	1422
6	146720
7	18258864
8	3217515264
9	910849979232
10	316878962588928
11	143616562358849280
12	90359341652805156864
13	68004478547050644357120
14	63187026071337208000512000
15	75392341069747600992153600000
16	104962910849766568886449582080000
17	174017685915978467201007058206720000

[1, 0, 0, 1, 32, 1422, 146720, 18258864, 3217515264, 910849979232, 316878962588928, 143616562358849280, 90359341652805156864, 68004478547050644357120, 63187026071337208000512000, 75392341069747600992153600000, 104962910849766568886449582080000, 174017685915978467201007058206720000]

cp's OEIS Frontend

A358157 a(n) is the permanent of the n X n matrix M(n) that is defined by M[i,j] = floor(i*j/3).

Table of values

List of values