A192264 - cp's OEIS frontend

A192264 a(1)=1, a(2)=2; a(n) = abs((n-1)a(n-1) - na(n-2)), n > 2.

n	a(n)
1	1
2	2
3	1
4	5
5	15
6	45
7	165
8	795
9	4875
10	35925
11	305625
12	2930775
13	31196175
14	364519425
15	4635329325
16	63697629075
17	940361466675
18	14839587610125
19	249245709115425
20	4438876720990575
21	83543374528387575
22	1656755577234346425
23	34527125085002707125

[1, 2, 1, 5, 15, 45, 165, 795, 4875, 35925, 305625, 2930775, 31196175, 364519425, 4635329325, 63697629075, 940361466675, 14839587610125, 249245709115425, 4438876720990575, 83543374528387575, 1656755577234346425, 34527125085002707125]

cp's OEIS Frontend

A192264 a(1)=1, a(2)=2; a(n) = abs((n-1)a(n-1) - na(n-2)), n > 2.

Table of values

List of values

cp's OEIS Frontend

A192264 a(1)=1, a(2)=2; a(n) = abs((n-1)*a(n-1) - n*a(n-2)), n > 2.

Table of values

List of values

A192264 a(1)=1, a(2)=2; a(n) = abs((n-1)a(n-1) - na(n-2)), n > 2.