A250029 - 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

A250029 as a simple table

n	a(n)
0	1
1	1
2	1
3	4
4	9
5	16
6	36
7	144
8	400
9	900
10	3600
11	11025
12	28224
13	78400
14	254016
15	705600
16	2286144
17	6350400
18	25401600
19	85377600
20	250905600
21	768398400
22	3073593600
23	10600761600
24	32464832400
25	129859329600
26	456536705625

[1,1,1,4,9,16,36,144,400,900,3600,11025,28224, 78400,254016,705600,2286144,6350400,25401600, 85377600,250905600,768398400,3073593600, 10600761600,32464832400,129859329600,456536705625]