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”).

A186936 as a simple table

na(n)
11000
227272
3241320
42504264
525314744
6264604776
72731872328
828477050608
9295182600552
103063267862112
1131785328427832
12329995464895168
133425533459997032
1435554512231460224
15369074247549339088

[1000,27272,241320,2504264,25314744,264604776,
 2731872328,28477050608,295182600552,3063267862112,
 31785328427832,329995464895168,3425533459997032,
 35554512231460224,369074247549339088]