A111920 - cp's OEIS frontend

A111920 Numerator of x(n) = Sum_{k=1..n} ((odd part of k)/(k^4)).

n	a(n)
1	1
2	17
3	475
4	7627
5	960287
6	962287
7	330928441
8	5296012681
9	143167958387
10	143231970419
11	190769776691689
12	190794429473689
13	419345761582878733
14	419413977483774733
15	16780996063666453
16	268499592964601893

[1, 17, 475, 7627, 960287, 962287, 330928441, 5296012681, 143167958387, 143231970419, 190769776691689, 190794429473689, 419345761582878733, 419413977483774733, 16780996063666453, 268499592964601893]

cp's OEIS Frontend

A111920 Numerator of x(n) = Sum_{k=1..n} ((odd part of k)/(k^4)).

Table of values

List of values