login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A166816 as a simple table

na(n)
10
20
3105
4767
53159
69751
725148
857258
9118866
10229698
11419067
12729201
131219361
141970865
153093142
164730948
177072884
1810361364
1914904189
2021087891
2129393019
2240411547
2354866592
2473634638
2597770470
26128535030

[0,0,105,767,3159,9751,25148,57258,118866,229698,
 419067,729201,1219361,1970865,3093142,4730948,
 7072884,10361364,14904189,21087891,29393019,
 40411547,54866592,73634638,97770470,128535030]