login

A240047 as a simple table

na(n)
12
24
39
420
533
676
7117
8232
9398
10675
111228
122002
133548
145935
1510128
1617287
1728967
1849649
1983130
20141412
21238567
22402406
23681948
241147552
251943230
263275448
275532679
289343794
2915759620
3026629572
3144915334
3275854561
33128021118
34216075045

[2,4,9,20,33,76,117,232,398,675,1228,2002,3548,
 5935,10128,17287,28967,49649,83130,141412,238567,
 402406,681948,1147552,1943230,3275448,5532679,
 9343794,15759620,26629572,44915334,75854561,
 128021118,216075045]