A383783 - cp's OEIS frontend

A383783 a(n) = Sum_{k=1..2^n} mu(k) * (floor(2^n/k)^4 - floor((2^n-1)/k)^4).

n	a(n)
0	1
1	14
2	160
3	1520
4	13216
5	110144
6	899200
7	7266560
8	58425856
9	468583424
10	3753379840
11	30045900800
12	240442679296
13	1923843375104
14	15391954862080
15	123140470538240
16	985143091265536
17	7881222038749184
18	63050085546065920
19	504401921315962880
20	4035220318323736576

[1, 14, 160, 1520, 13216, 110144, 899200, 7266560, 58425856, 468583424, 3753379840, 30045900800, 240442679296, 1923843375104, 15391954862080, 123140470538240, 985143091265536, 7881222038749184, 63050085546065920, 504401921315962880, 4035220318323736576]

cp's OEIS Frontend

A383783 a(n) = Sum_{k=1..2^n} mu(k) * (floor(2^n/k)^4 - floor((2^n-1)/k)^4).

Table of values

List of values