login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A266959 as a simple table

na(n)
11
212
3103
41004
510005
6100006
71000007
810000008
9100000009
101000000010
1110000000011
12100000000012
131000000000013
1410000000000014
15100000000000015
161000000000000016
1710000000000000017
18100000000000000018
191000000000000000019
2010000000000000000020

[1,12,103,1004,10005,100006,1000007,10000008,
 100000009,1000000010,10000000011,100000000012,
 1000000000013,10000000000014,100000000000015,
 1000000000000016,10000000000000017,
 100000000000000018,1000000000000000019,
 10000000000000000020]