A360381 - cp's OEIS frontend

A360381 Generalized Somos-5 sequence a(n) = (a(n-1)a(n-4) + a(n-2)a(n-3))/a(n-5) = -a(-n), a(1) = 1, a(2) = -1, a(3) = a(4) = 1, a(5) = -7.

n	a(n)
0	0
1	1
2	-1
3	1
4	1
5	-7
6	8
7	-1
8	-57
9	391
10	-455
11	-2729
12	22352
13	-175111
14	47767
15	8888873
16	-69739671
17	565353361
18	3385862936
19	-195345149609
20	1747973613295
21	-4686154246801
22	-632038062613231
23	34045765616463119
24	-319807929289790304
25	-11453004955077020783

[0, 1, -1, 1, 1, -7, 8, -1, -57, 391, -455, -2729, 22352, -175111, 47767, 8888873, -69739671, 565353361, 3385862936, -195345149609, 1747973613295, -4686154246801, -632038062613231, 34045765616463119, -319807929289790304, -11453004955077020783]

cp's OEIS Frontend

A360381 Generalized Somos-5 sequence a(n) = (a(n-1)a(n-4) + a(n-2)a(n-3))/a(n-5) = -a(-n), a(1) = 1, a(2) = -1, a(3) = a(4) = 1, a(5) = -7.

Table of values

List of values

cp's OEIS Frontend

A360381 Generalized Somos-5 sequence a(n) = (a(n-1)*a(n-4) + a(n-2)*a(n-3))/a(n-5) = -a(-n), a(1) = 1, a(2) = -1, a(3) = a(4) = 1, a(5) = -7.

Table of values

List of values

A360381 Generalized Somos-5 sequence a(n) = (a(n-1)a(n-4) + a(n-2)a(n-3))/a(n-5) = -a(-n), a(1) = 1, a(2) = -1, a(3) = a(4) = 1, a(5) = -7.