A258581 - cp's OEIS frontend

A258581 a(1) = 2; for n > 1 if n is even a(n) = gpf(1 + Product_{odd m,m while if n is odd a(n) = gpf(1 + Product_{even m,m

n	a(n)
1	2
2	3
3	2
4	5
5	2
6	3
7	23
8	37
9	17
10	149
11	761
12	50647
13	4799
14	411527
15	18871308021859
16	10312625105789
17	17838863896549
18	57892815889963361050999657943
19	2252973546284243766517
20	1849093263449444009859625443689931115519009693

[2, 3, 2, 5, 2, 3, 23, 37, 17, 149, 761, 50647, 4799, 411527, 18871308021859, 10312625105789, 17838863896549, 57892815889963361050999657943, 2252973546284243766517, 1849093263449444009859625443689931115519009693]

cp's OEIS Frontend

A258581 a(1) = 2; for n > 1 if n is even a(n) = gpf(1 + Product_{odd m,m while if n is odd a(n) = gpf(1 + Product_{even m,m

Table of values

List of values