login

A288541 as a simple table

na(n)
21
30
40
53
613
730
861
9172
10619
112241
127736
1325786
1485315
15286653
16986444
173465777
1812342188
1944275218
20159463056
21576136367
222089063623
237607265038
2427829092314
25102263653872
26377340952123
271397457667346
285192248524833
2919348310336881
3072292940817636

[1,0,0,3,13,30,61,172,619,2241,7736,25786,85315,
 286653,986444,3465777,12342188,44275218,159463056,
 576136367,2089063623,7607265038,27829092314,
 102263653872,377340952123,1397457667346,
 5192248524833,19348310336881,72292940817636]