login

A006297 as a simple table

na(n)
21
310
4167
51720
624164
7256116
83392843
936703824
10472592916
115188948072
1265723863196
13729734918432
149145847808784
15102432266545800
161274461449989715
1714373136466094880
18177882700353757460
192017523504473479992
2024868664942648145372

[1,10,167,1720,24164,256116,3392843,36703824,
 472592916,5188948072,65723863196,729734918432,
 9145847808784,102432266545800,1274461449989715,
 14373136466094880,177882700353757460,
 2017523504473479992,24868664942648145372]