A144656 - cp's OEIS frontend

A144656 a(n) = (n mod 2) if n <= 3, otherwise a(n) = (n^2-5n+7)(n-2)a(n-1)/(n-3) + (n^2-5n+7)a(n-2) - (n-2)a(n-3)/(n-3).

n	a(n)
0	0
1	1
2	0
3	1
4	4
5	49
6	900
7	24649
8	944784
9	48455521
10	3210355600
11	267186643801
12	27307626948900
13	3363915436531441
14	491705171699154084
15	84158959760104032049
16	16675767262618669710400
17	3787671541267275818341249
18	977702867682508392324162624
19	284628954669920840314598014801

[0, 1, 0, 1, 4, 49, 900, 24649, 944784, 48455521, 3210355600, 267186643801, 27307626948900, 3363915436531441, 491705171699154084, 84158959760104032049, 16675767262618669710400, 3787671541267275818341249, 977702867682508392324162624, 284628954669920840314598014801]

cp's OEIS Frontend

A144656 a(n) = (n mod 2) if n <= 3, otherwise a(n) = (n^2-5n+7)(n-2)a(n-1)/(n-3) + (n^2-5n+7)a(n-2) - (n-2)a(n-3)/(n-3).

Table of values

List of values

cp's OEIS Frontend

A144656 a(n) = (n mod 2) if n <= 3, otherwise a(n) = (n^2-5n+7)*(n-2)*a(n-1)/(n-3) + (n^2-5n+7)*a(n-2) - (n-2)*a(n-3)/(n-3).

Table of values

List of values

A144656 a(n) = (n mod 2) if n <= 3, otherwise a(n) = (n^2-5n+7)(n-2)a(n-1)/(n-3) + (n^2-5n+7)a(n-2) - (n-2)a(n-3)/(n-3).