A228230 - cp's OEIS frontend

A228230 Recurrence a(n) = (1/2)n(n+1)*a(n-1) + 1 with a(0) = 1.

n	a(n)
0	1
1	2
2	7
3	43
4	431
5	6466
6	135787
7	3802037
8	136873333
9	6159299986
10	338761499231
11	22358258949247
12	1743944198041267
13	158698922021755298
14	16663386812284306291
15	1999606417474116754921
16	271946472776479878669257
17	41607810334801421436396322
18	7114935567251043065623771063

[1, 2, 7, 43, 431, 6466, 135787, 3802037, 136873333, 6159299986, 338761499231, 22358258949247, 1743944198041267, 158698922021755298, 16663386812284306291, 1999606417474116754921, 271946472776479878669257, 41607810334801421436396322, 7114935567251043065623771063]

cp's OEIS Frontend

A228230 Recurrence a(n) = (1/2)n(n+1)*a(n-1) + 1 with a(0) = 1.

Table of values

List of values

cp's OEIS Frontend

A228230 Recurrence a(n) = (1/2)*n*(n+1)*a(n-1) + 1 with a(0) = 1.

Table of values

List of values

A228230 Recurrence a(n) = (1/2)n(n+1)*a(n-1) + 1 with a(0) = 1.