A033837 - 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

A033837 as a simple table

n	a(n)
1	2
2	13
3	28
4	289
5	308
6	4890
7	257
8	66562
9	322217
10	0
11	0
12	0
13	16387
14	268533762
15	2204944815
16	172449032
17	34876823313
18	207708636457
19	0
20	3315971951065
21	8837942823632
22	53027623387338
23	422589088112942
24	1129785254793

[2,13,28,289,308,4890,257,66562,322217,0,0,0, 16387,268533762,2204944815,172449032,34876823313, 207708636457,0,3315971951065,8837942823632, 53027623387338,422589088112942,1129785254793]