login

A001780 as a simple table

na(n)
01
18
237
3128
4367
5920
62083
74352
88518
915792
1027966
1147616
1278354
13125136
14194634
15295680
16439791
17641784
18920491
191299584
201808521
212483624
223369301
234519424
245998876
257885280
2610270924
2713264896

[1,8,37,128,367,920,2083,4352,8518,15792,27966,
 47616,78354,125136,194634,295680,439791,641784,
 920491,1299584,1808521,2483624,3369301,4519424,
 5998876,7885280,10270924,13264896]