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”).

A190309 as a simple table

na(n)
10
20
32
45
511
619
729
840
958
1074
1194
12113
13141
14168
15201
16227
17267
18304
19348
20390
21438
22483
23537
24590
25657
26709
27776
28837
29913
30979
311057
321130
331225
341299
351396
361472
371576
381663
391768
401863
411974

[0,0,2,5,11,19,29,40,58,74,94,113,141,168,201,227,
 267,304,348,390,438,483,537,590,657,709,776,837,
 913,979,1057,1130,1225,1299,1396,1472,1576,1663,
 1768,1863,1974]