A024587 - 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

A024587 as a simple table

n	a(n)
0	1
1	7
2	49
3	346
4	2444
5	17261
6	121906
7	860963
8	6080563
9	42944057
10	303292974
11	2142010664
12	15127978816
13	106841551680
14	754569880366
15	5329159820340
16	37637262140584
17	265813664666689

[1,7,49,346,2444,17261,121906,860963,6080563, 42944057,303292974,2142010664,15127978816, 106841551680,754569880366,5329159820340, 37637262140584,265813664666689]