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”).

A318098 as a simple table

na(n)
10
21
31
41
55
61
72
816
916
102
113
1250
1345
1450
153
165
17160
18220
19220
20160
215
228
23511
24795
251563
26795
27511
288
2913
301634
313310
329193
339193
343310
351634
3613
3721
385226
3912774
4057744
4173788
4257744
4312774
445226
4521
4634
4716716
4851298
49356786
50679923
51679923
52356786
5351298

[0,1,1,1,5,1,2,16,16,2,3,50,45,50,3,5,160,220,220,
 160,5,8,511,795,1563,795,511,8,13,1634,3310,9193,
 9193,3310,1634,13,21,5226,12774,57744,73788,57744,
 12774,5226,21,34,16716,51298,356786,679923,679923,
 356786,51298]