login

A264761 as a simple table

na(n)
10
20
31
41
52
66
717
873
9290
101274
115844
1227750
13135192
14676263
153437509
1617811771
1793531354
18497835030
192680058068
2014577839412
2180039070868
22443164758244
232472713506356

[0,0,1,1,2,6,17,73,290,1274,5844,27750,135192,
 676263,3437509,17811771,93531354,497835030,
 2680058068,14577839412,80039070868,443164758244,
 2472713506356]