login

A318160 as a simple table

na(n)
01
11
21
36
418
550
6195
7392
81652
92970
1012825
1122022
1296030
13160888
14705341
151162800
165116200
178335338
1836773397
1959366450
20262462010
21420630210
221862790699
232967563040
2413160496684
2520861295000
2692624149475
27146203657992
28649794035142
291021964428880

[1,1,1,6,18,50,195,392,1652,2970,12825,22022,
 96030,160888,705341,1162800,5116200,8335338,
 36773397,59366450,262462010,420630210,1862790699,
 2967563040,13160496684,20861295000,92624149475,
 146203657992,649794035142,1021964428880]