A271609 - cp's OEIS frontend

A271609 Number of ways to reciprocally link elements of an n X n X n triangular array with themselves or a neighbor, with no more than n elements linked to themselves.

n	a(n)
1	1
2	3
3	17
4	307
5	7764
6	222936
7	18314708
8	5436984025
9	1549076843600
10	327785587238680
11	258598550473174218
12	937062960563484014011
13	2266270598091075686029983
14	2979993347333205027776950744
15	18769591152933109773812486076631
16	672356922734153057389479052479321305

[1, 3, 17, 307, 7764, 222936, 18314708, 5436984025, 1549076843600, 327785587238680, 258598550473174218, 937062960563484014011, 2266270598091075686029983, 2979993347333205027776950744, 18769591152933109773812486076631, 672356922734153057389479052479321305]

cp's OEIS Frontend

A271609 Number of ways to reciprocally link elements of an n X n X n triangular array with themselves or a neighbor, with no more than n elements linked to themselves.

Table of values

List of values