A059480 - cp's OEIS frontend

A059480 a(0) = a(1) = 1; a(n) = a(n-1) + (n+1)*a(n-2).

n	a(n)
0	1
1	1
2	4
3	8
4	28
5	76
6	272
7	880
8	3328
9	12128
10	48736
11	194272
12	827840
13	3547648
14	15965248
15	72727616
16	344136832
17	1653233920
18	8191833728
19	41256512128
20	213285020416
21	1120928287232
22	6026483756800
23	32928762650368
24	183590856570368

[1, 1, 4, 8, 28, 76, 272, 880, 3328, 12128, 48736, 194272, 827840, 3547648, 15965248, 72727616, 344136832, 1653233920, 8191833728, 41256512128, 213285020416, 1120928287232, 6026483756800, 32928762650368, 183590856570368]

cp's OEIS Frontend

A059480 a(0) = a(1) = 1; a(n) = a(n-1) + (n+1)*a(n-2).

Table of values

List of values