A272038 - cp's OEIS frontend

A272038 Somos's sequence {b(9,n)} defined in comment in A078495: a(0)=a(1)=...=a(20)=1; for n>=21, a(n)=(a(n-1)a(n-20)+a(n-10)a(n-11))/a(n-21).

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	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	2
22	3
23	4
24	5
25	6
26	7
27	8
28	9
29	10
30	11
31	13
32	19
33	31
34	51
35	81
36	123
37	179
38	251
39	341
40	451
41	1045
42	1691
43	2451
44	3459
45	4977
46	7467
47	11679
48	18755
49	30349
50	48763
51	100474
52	282777
53	679512
54	1391391
55	2547414
56	4327101

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 19, 31, 51, 81, 123, 179, 251, 341, 451, 1045, 1691, 2451, 3459, 4977, 7467, 11679, 18755, 30349, 48763, 100474, 282777, 679512, 1391391, 2547414, 4327101]

cp's OEIS Frontend

A272038 Somos's sequence {b(9,n)} defined in comment in A078495: a(0)=a(1)=...=a(20)=1; for n>=21, a(n)=(a(n-1)a(n-20)+a(n-10)a(n-11))/a(n-21).

Table of values

List of values

cp's OEIS Frontend

A272038 Somos's sequence {b(9,n)} defined in comment in A078495: a(0)=a(1)=...=a(20)=1; for n>=21, a(n)=(a(n-1)*a(n-20)+a(n-10)*a(n-11))/a(n-21).

Table of values

List of values

A272038 Somos's sequence {b(9,n)} defined in comment in A078495: a(0)=a(1)=...=a(20)=1; for n>=21, a(n)=(a(n-1)a(n-20)+a(n-10)a(n-11))/a(n-21).