A209444 - cp's OEIS frontend

A209444 a(n) = Pell(n)*A000143(n) for n>=1 with a(0)=1, where A000143(n) is the number of ways of writing n as a sum of 8 squares.

n	a(n)
0	1
1	16
2	224
3	2240
4	13632
5	58464
6	219520
7	930176
8	3805824
9	11930320
10	33558336
11	122352192
12	440858880
13	1176756448
14	3112368896
15	11008771200
16	35248366848
17	89371035936
18	232665100640
19	727171963840
20	2289378446208
21	5950875374080
22	13907284255872
23	43816224486528

[1, 16, 224, 2240, 13632, 58464, 219520, 930176, 3805824, 11930320, 33558336, 122352192, 440858880, 1176756448, 3112368896, 11008771200, 35248366848, 89371035936, 232665100640, 727171963840, 2289378446208, 5950875374080, 13907284255872, 43816224486528]

cp's OEIS Frontend

A209444 a(n) = Pell(n)*A000143(n) for n>=1 with a(0)=1, where A000143(n) is the number of ways of writing n as a sum of 8 squares.

Table of values

List of values