login

A263507 as a simple table

na(n)
18
248
3204
4770
52687
68559
725383
871498
9193691
10508996
111306369
123291584
138173381
1420060419
1548777993
16117717414
17282365804
18673959638
191602152316
203796140809
218970338435
2221150183227
2349777148466
24116976012851
25274555052038

[8,48,204,770,2687,8559,25383,71498,193691,508996,
 1306369,3291584,8173381,20060419,48777993,
 117717414,282365804,673959638,1602152316,
 3796140809,8970338435,21150183227,49777148466,
 116976012851,274555052038]