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”).

A269307 as a simple table

na(n)
117
228
331
444
551
6132
7133
8198
9208
102528
119241
1213570
1316577
14177568
15228742
16780889
17878078
181854920
192775787
203663541
218204010
2266326143
2373734437
24164211532
25670396359
26803230921
27832581731
281036125551
291572413223

[17,28,31,44,51,132,133,198,208,2528,9241,13570,
 16577,177568,228742,780889,878078,1854920,2775787,
 3663541,8204010,66326143,73734437,164211532,
 670396359,803230921,832581731,1036125551,
 1572413223]