A271835 - cp's OEIS frontend

A271835 Somos's sequence {a(5,n)} defined in comment in A018896: a(0)=a(1)= ... = a(11) = 1; for n>=12, a(n) = (a(n-1)*a(n-11) + a(n-6)^2)/a(n-12).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	11
19	20
20	36
21	61
22	97
23	243
24	425
25	700
26	1199
27	2183
28	4115
29	14902
30	43515
31	102827
32	214168
33	418685
34	1223440
35	3053628
36	9484929
37	31351174
38	95335734
39	260010845
40	1305343146
41	4437434637
42	12553187856
43	35704506092

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 11, 20, 36, 61, 97, 243, 425, 700, 1199, 2183, 4115, 14902, 43515, 102827, 214168, 418685, 1223440, 3053628, 9484929, 31351174, 95335734, 260010845, 1305343146, 4437434637, 12553187856, 35704506092]

cp's OEIS Frontend

A271835 Somos's sequence {a(5,n)} defined in comment in A018896: a(0)=a(1)= ... = a(11) = 1; for n>=12, a(n) = (a(n-1)*a(n-11) + a(n-6)^2)/a(n-12).

Table of values

List of values