A327496 - cp's OEIS frontend

A327496 a(n) = a(n - 1) * 4^r where r = valuation(n, 2) if 4 divides n else r = (n mod 2) + 1; a(0) = 1. The denominators of A327495.

n	a(n)
0	1
1	16
2	64
3	1024
4	16384
5	262144
6	1048576
7	16777216
8	1073741824
9	17179869184
10	68719476736
11	1099511627776
12	17592186044416
13	281474976710656
14	1125899906842624
15	18014398509481984
16	4611686018427387904
17	73786976294838206464
18	295147905179352825856
19	4722366482869645213696

[1, 16, 64, 1024, 16384, 262144, 1048576, 16777216, 1073741824, 17179869184, 68719476736, 1099511627776, 17592186044416, 281474976710656, 1125899906842624, 18014398509481984, 4611686018427387904, 73786976294838206464, 295147905179352825856, 4722366482869645213696]

cp's OEIS Frontend

A327496 a(n) = a(n - 1) * 4^r where r = valuation(n, 2) if 4 divides n else r = (n mod 2) + 1; a(0) = 1. The denominators of A327495.

Table of values

List of values