A198791 - cp's OEIS frontend

A198791 Least count k that deletes the alternate (odd) numbers in the Josephus problem for a circle of numbers 1, 2, 3, ... 2*n, leaving the even numbers undeleted.

n	a(n)
1	1
2	5
3	19
4	27
5	87
6	989
7	3119
8	5399
9	8189
10	99663
11	57455
12	222397
13	2603047
14	8476649
15	117917347
16	290190179
17	360064247
18	1344262919
19	3181391639
20	39179386959
21	204692414215
22	165424388219
23	2254874520599
24	2922139183443
25	594630799853

[1, 5, 19, 27, 87, 989, 3119, 5399, 8189, 99663, 57455, 222397, 2603047, 8476649, 117917347, 290190179, 360064247, 1344262919, 3181391639, 39179386959, 204692414215, 165424388219, 2254874520599, 2922139183443, 594630799853]

cp's OEIS Frontend

A198791 Least count k that deletes the alternate (odd) numbers in the Josephus problem for a circle of numbers 1, 2, 3, ... 2*n, leaving the even numbers undeleted.

Table of values

List of values