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”).

A137831 as a simple table

na(n)
10
20
31
42
56
68
714
818
926
1042
1148
1268
1384
1492
15110
16140
17174
18186
19224
20252
21266
22312
23344
24396
25470
26510
27530
28572
29594
30638
31806
32858
33938
34966
351110
361140
371232
381328
391394
401496
411602
421638
431824
441862
451940
461980
472226
482486
492576
502622
512714
522856

[0,0,1,2,6,8,14,18,26,42,48,68,84,92,110,140,174,
 186,224,252,266,312,344,396,470,510,530,572,594,
 638,806,858,938,966,1110,1140,1232,1328,1394,1496,
 1602,1638,1824,1862,1940,1980,2226,2486,2576,2622,
 2714,2856]