login

A156928 as a simple table

na(n)
21
37
428
586
6227
7545
81230
92664
105613
1111611
1223728
1348106
1497031
15195077
16391394
17784284
181570353
193142815
206288100
2112579070
2225161451
2350326697
24100657718
25201320336
26402646197
27805298595

[1,7,28,86,227,545,1230,2664,5613,11611,23728,
 48106,97031,195077,391394,784284,1570353,3142815,
 6288100,12579070,25161451,50326697,100657718,
 201320336,402646197,805298595]