A232845 - cp's OEIS frontend

A232845 a(0) = 0, a(1) = 1, and for n>=2, a(n) = (n-2)a(n-1) - (n-1)a(n-2).

n	a(n)
0	0
1	1
2	0
3	-2
4	-4
5	-4
6	4
7	44
8	236
9	1300
10	8276
11	61484
12	523804
13	5024036
14	53478980
15	624890236
16	7946278604
17	109195935284
18	1612048228276
19	25439293045580
20	427278358483196
21	7609502950269124
22	143217213477235364
23	2840152418116021916
24	59189357288576068780

[0, 1, 0, -2, -4, -4, 4, 44, 236, 1300, 8276, 61484, 523804, 5024036, 53478980, 624890236, 7946278604, 109195935284, 1612048228276, 25439293045580, 427278358483196, 7609502950269124, 143217213477235364, 2840152418116021916, 59189357288576068780]

cp's OEIS Frontend

A232845 a(0) = 0, a(1) = 1, and for n>=2, a(n) = (n-2)a(n-1) - (n-1)a(n-2).

Table of values

List of values

cp's OEIS Frontend

A232845 a(0) = 0, a(1) = 1, and for n>=2, a(n) = (n-2)*a(n-1) - (n-1)*a(n-2).

Table of values

List of values

A232845 a(0) = 0, a(1) = 1, and for n>=2, a(n) = (n-2)a(n-1) - (n-1)a(n-2).