A332657 - cp's OEIS frontend

A332657 Alternate adding and multiplying prime numbers: a(2n) = a(2n-1) * prime(2n+1) and a(2n-1) = a(2n) + prime(2n-2) for n >= 1.

n	a(n)
1	5
2	25
3	32
4	352
5	365
6	6205
7	6224
8	143152
9	143181
10	4438611
11	4438648
12	181984568
13	181984611
14	8553276717
15	8553276770
16	504643329430
17	504643329491
18	33811103075897
19	33811103075968
20	2468210524545664
21	2468210524545743
22	204861473537296669
23	204861473537296758

[5, 25, 32, 352, 365, 6205, 6224, 143152, 143181, 4438611, 4438648, 181984568, 181984611, 8553276717, 8553276770, 504643329430, 504643329491, 33811103075897, 33811103075968, 2468210524545664, 2468210524545743, 204861473537296669, 204861473537296758]

cp's OEIS Frontend

A332657 Alternate adding and multiplying prime numbers: a(2n) = a(2n-1) * prime(2n+1) and a(2n-1) = a(2n) + prime(2n-2) for n >= 1.

Table of values

List of values