A068566 - cp's OEIS frontend

A068566 Numerator of Sum_{k=1..n} 1/(k * 2^k).

n	a(n)
1	1
2	5
3	2
4	131
5	661
6	1327
7	1163
8	148969
9	447047
10	44711
11	983705
12	7869871
13	102309709
14	204620705
15	31972079
16	32739453941
17	556571077357
18	556571247527
19	10574855234543
20	42299423848079
21	42299425233749
22	84598851790183

[1, 5, 2, 131, 661, 1327, 1163, 148969, 447047, 44711, 983705, 7869871, 102309709, 204620705, 31972079, 32739453941, 556571077357, 556571247527, 10574855234543, 42299423848079, 42299425233749, 84598851790183]

cp's OEIS Frontend

A068566 Numerator of Sum_{k=1..n} 1/(k * 2^k).

Table of values

List of values