login

A250609 as a simple table

na(n)
1502
21172
32236
43890
56526
610928
718664
832870
959818
10112052
11214660
12417818
13821878
141627544
153236224
166450734
1712876706
1825725404
1951419356
20102803618
21205568302
22411093632
23822140056
241644228470
253288400666
266576740228

[502,1172,2236,3890,6526,10928,18664,32870,59818,
 112052,214660,417818,821878,1627544,3236224,
 6450734,12876706,25725404,51419356,102803618,
 205568302,411093632,822140056,1644228470,
 3288400666,6576740228]