login

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

A227773 as a simple table

na(n)
21
33
43
518
639
771
8323
9536
101001
118544
1245723
13208524
14398959
153400196
165394991
1710391023
18150869313
191097649283
205467464369
2110622799089
22132941053437
23403978495031
24403978495031
258286870547680
2676601727404275
27399178399621704
28781379079653017

[1,3,3,18,39,71,323,536,1001,8544,45723,208524,
 398959,3400196,5394991,10391023,150869313,
 1097649283,5467464369,10622799089,132941053437,
 403978495031,403978495031,8286870547680,
 76601727404275,399178399621704,781379079653017]