login

A050621 as a simple table

na(n)
12
212
3104
41008
510016
6100032
71000064
810000128
9100000256
101000000512
1110000001024
12100000002048
131000000004096
1410000000008192
15100000000016384
161000000000032768
1710000000000065536
18100000000000131072

[2,12,104,1008,10016,100032,1000064,10000128,
 100000256,1000000512,10000001024,100000002048,
 1000000004096,10000000008192,100000000016384,
 1000000000032768,10000000000065536,
 100000000000131072]