login

A049972 as a simple table

na(n)
11
23
33
48
518
634
770
8155
9362
10655
111312
122639
135330
1410952
1522854
1649726
17116976
18211099
19422200
20844415
211688882
223378056
236757062
2413518142
2527053808
2654201738
27108708700
28218684082
29442436344
30905169434
311891993760

[1,3,3,8,18,34,70,155,362,655,1312,2639,5330,
 10952,22854,49726,116976,211099,422200,844415,
 1688882,3378056,6757062,13518142,27053808,
 54201738,108708700,218684082,442436344,905169434,
 1891993760]