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”).

A299512 as a simple table

na(n)
15
249
3167
41950
513836
6122197
71190886
810305454
992938855
10856134961
117719297704
1269979535652
13636903426165
145779540063885
1552466453104589
16476540155387122
174327173767423761
1839292973656519549
19356809765233277164

[5,49,167,1950,13836,122197,1190886,10305454,
 92938855,856134961,7719297704,69979535652,
 636903426165,5779540063885,52466453104589,
 476540155387122,4327173767423761,
 39292973656519549,356809765233277164]