login

A145070 as a simple table

na(n)
13
29
320
440
577
6147
7282
8546
91067
102101
114160
128268
1316473
1432871
1565654
16131206
17262295
18524457
191048764
202097360
214194533
228388859
2316777490
2433554730
2567109187
26134218077
27268435832
28536871316
291073742257
302147484111

[3,9,20,40,77,147,282,546,1067,2101,4160,8268,
 16473,32871,65654,131206,262295,524457,1048764,
 2097360,4194533,8388859,16777490,33554730,
 67109187,134218077,268435832,536871316,1073742257,
 2147484111]