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”).

A265190 as a simple table

na(n)
10
20
317
4774
576035
610866362
72130866037
8551607137250
9182413680759659
1075075411378226014
1137647855624072772341

[0,0,17,774,76035,10866362,2130866037,
 551607137250,182413680759659,75075411378226014,
 37647855624072772341]