A016197 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A016197 as a simple table

n	a(n)
0	0
1	1
2	23
3	397
4	6095
5	87781
6	1214423
7	16344637
8	215622815
9	2801832661
10	35979939623
11	457696700077
12	5777672071535
13	72470493235141
14	904168630965623
15	11229773405170717
16	138934529031464255
17	1713164078241143221

[0,1,23,397,6095,87781,1214423,16344637,215622815, 2801832661,35979939623,457696700077,5777672071535, 72470493235141,904168630965623,11229773405170717, 138934529031464255,1713164078241143221]