A006723 - cp's OEIS frontend

A006723 Somos-7 sequence: a(n) = (a(n-1) * a(n-6) + a(n-2) * a(n-5) + a(n-3) * a(n-4)) / a(n-7), a(0) = ... = a(6) = 1.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	3
8	5
9	9
10	17
11	41
12	137
13	769
14	1925
15	7203
16	34081
17	227321
18	1737001
19	14736001
20	63232441
21	702617001
22	8873580481
23	122337693603
24	1705473647525
25	22511386506929
26	251582370867257
27	9254211194697641
28	215321535159114017

[1, 1, 1, 1, 1, 1, 1, 3, 5, 9, 17, 41, 137, 769, 1925, 7203, 34081, 227321, 1737001, 14736001, 63232441, 702617001, 8873580481, 122337693603, 1705473647525, 22511386506929, 251582370867257, 9254211194697641, 215321535159114017]

cp's OEIS Frontend

A006723 Somos-7 sequence: a(n) = (a(n-1) * a(n-6) + a(n-2) * a(n-5) + a(n-3) * a(n-4)) / a(n-7), a(0) = ... = a(6) = 1.

Table of values

List of values