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”).

A210890 as a simple table

na(n)
110101
210201
310301
410401
510501
610601
710701
810801
910901
10101101
1120102
1220202
1320302
1420402
1520502
1620602
1720702
1820802
1920902
20201102
2130103
2230303
2330403
2430503
2530603
2630703
2730803
2830903
29301103
301111
3111111
3211211
3311311
3411411
3511511
3611611
3711711

[10101,10201,10301,10401,10501,10601,10701,10801,
 10901,101101,20102,20202,20302,20402,20502,20602,
 20702,20802,20902,201102,30103,30303,30403,30503,
 30603,30703,30803,30903,301103,1111,11111,11211,
 11311,11411,11511,11611,11711]