login

A251772 as a simple table

na(n)
1470
21142
32402
44790
512302
627242
755766
8148022
9332738
10688646
111847582
124175018
138671142
1423345702
1552842914
16109873622
17296146862
18670682474
191395012278
203761354582
218519745410
2217722964198
2347791500542
24108256965290

[470,1142,2402,4790,12302,27242,55766,148022,
 332738,688646,1847582,4175018,8671142,23345702,
 52842914,109873622,296146862,670682474,1395012278,
 3761354582,8519745410,17722964198,47791500542,
 108256965290]