login

A253699 as a simple table

na(n)
140
276
3150
4282
5540
61026
71984
83782
97270
1013880
1126644
1251026
1397726
14187364
15358554
16687792
171316136
182524044
194831726
209262042
2117738282
2233988728
2365116062
24124738388
25239016216
26457824900
27877280898
281680426234
293219854846

[40,76,150,282,540,1026,1984,3782,7270,13880,
 26644,51026,97726,187364,358554,687792,1316136,
 2524044,4831726,9262042,17738282,33988728,
 65116062,124738388,239016216,457824900,877280898,
 1680426234,3219854846]