login

A309535 as a simple table

na(n)
00
11
22
35
413
530
669
7156
8348
9769
101682
113653
127884
1316924
1436160
1576944
16163137
17344770
18726533
191527052
203202076
216700096
2213992080
2329167936
2460703424
25126141953
26261754114
27542448645
281122778124
292321317916
304794159168
319891365008
3220388823360

[0,1,2,5,13,30,69,156,348,769,1682,3653,7884,
 16924,36160,76944,163137,344770,726533,1527052,
 3202076,6700096,13992080,29167936,60703424,
 126141953,261754114,542448645,1122778124,
 2321317916,4794159168,9891365008,20388823360]