login

A143154 as a simple table

na(n)
11
22
318
4262
55320
6138728
74419156
8166319424
97221397848
10355312006392
1119537581248592
121187337791554176
1379025863405440432
145716937001401316000
15446654003380859659488
1637480492611898380241248

[1,2,18,262,5320,138728,4419156,166319424,
 7221397848,355312006392,19537581248592,
 1187337791554176,79025863405440432,
 5716937001401316000,446654003380859659488,
 37480492611898380241248]