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”).

A291946 as a simple table

na(n)
01
111111
2123454321
31371700960631
415240969373571041
5169342410709747836551
61881563525396008211918161
720906052330675047242622686871
8232287147446130449912780673823681
92580942495273955428980906066854919591
1028676852064988918771406847308825011575601
11318628503294091876469101480448354703616502711

[1,11111,123454321,1371700960631,
 15240969373571041,169342410709747836551,
 1881563525396008211918161,
 20906052330675047242622686871,
 232287147446130449912780673823681,
 2580942495273955428980906066854919591,
 28676852064988918771406847308825011575601,
 318628503294091876469101480448354703616502711]