A172537 - 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

A172537 as a simple table

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	1
15	1307674368000
16	36574751938491748341360000
17	665825560532772251175492202972938240000
18	10431401634793817906193873163767479249710797568200000

[0,0,0,0,0,0,0,0,0,0,0,0,0,1,1307674368000, 36574751938491748341360000, 665825560532772251175492202972938240000, 10431401634793817906193873163767479249710797568200\ 000]