A110625 - cp's OEIS frontend

A110625 Numerator of b(n) = -Sum_{k=1..n} A037861(k)/((2k)(2*k+1)), where A037861(k) = (number of 0's) - (number of 1's) in the binary representation of k.

n	a(n)
1	1
2	1
3	3
4	101
5	5807
6	77801
7	82949
8	170636
9	170636
10	170636
11	363113
12	363113
13	84848
14	710567
15	22435781
16	3901243741
17	27210449083
18	1003538672911
19	248595095590537
20	10165684261926701
21	438167567023512863
22	439119040574907047

[1, 1, 3, 101, 5807, 77801, 82949, 170636, 170636, 170636, 363113, 363113, 84848, 710567, 22435781, 3901243741, 27210449083, 1003538672911, 248595095590537, 10165684261926701, 438167567023512863, 439119040574907047]

cp's OEIS Frontend

A110625 Numerator of b(n) = -Sum_{k=1..n} A037861(k)/((2k)(2*k+1)), where A037861(k) = (number of 0's) - (number of 1's) in the binary representation of k.

Table of values

List of values

cp's OEIS Frontend

A110625 Numerator of b(n) = -Sum_{k=1..n} A037861(k)/((2*k)*(2*k+1)), where A037861(k) = (number of 0's) - (number of 1's) in the binary representation of k.

Table of values

List of values

A110625 Numerator of b(n) = -Sum_{k=1..n} A037861(k)/((2k)(2*k+1)), where A037861(k) = (number of 0's) - (number of 1's) in the binary representation of k.