login

A261492 as a simple table

na(n)
01
12
24
38
418
542
6102
7254
8648
91688
104486
1112146
1233474
1393810
14267112
15772124
162264214
176731254
1820275118
1961841886
20190914356
21596256556
221883148834
236012081046
2419395355770
2563205986042
26208003526516
27691048272152
282317140259834
297839542054210

[1,2,4,8,18,42,102,254,648,1688,4486,12146,33474,
 93810,267112,772124,2264214,6731254,20275118,
 61841886,190914356,596256556,1883148834,
 6012081046,19395355770,63205986042,208003526516,
 691048272152,2317140259834,7839542054210]