login

A289616 as a simple table

na(n)
11
21
31
42
511
637
7126
8422
91422
104853
1116786
1258775
13208000
14742887
152674426
169694830
1735357654
18129644773
19477638682
201767263171
216564120400
2224466266999
2391482563618
24343059613627
251289904147300
264861946401427
2718367353072126
2869533550915977
29263747951750332
301002242216651339

[1,1,1,2,11,37,126,422,1422,4853,16786,58775,
 208000,742887,2674426,9694830,35357654,129644773,
 477638682,1767263171,6564120400,24466266999,
 91482563618,343059613627,1289904147300,
 4861946401427,18367353072126,69533550915977,
 263747951750332,1002242216651339]