A351964 - OEIS

A351964

The 2-adic valuation of A109812(n); The exponent of the highest power of 2 dividing A109812(n).

0, 1, 2, 0, 3, 0, 1, 4, 1, 0, 1, 2, 0, 1, 5, 0, 3, 0, 2, 0, 2, 0, 3, 0, 1, 0, 4, 0, 6, 1, 0, 1, 0, 1, 0, 1, 0, 3, 0, 5, 0, 2, 0, 2, 0, 2, 4, 0, 3, 7, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 2, 1, 0, 1, 3, 0, 3, 0, 2, 0, 2, 6, 0, 5, 0, 4, 0, 2, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 0, 4, 0, 1, 2, 0, 8, 0, 4

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..100000

Index entries for sequences related to binary expansion of n

FORMULA

a(n) = A007814(A109812(n)).

PROG

(PARI)

v109812 = readvec("b109812_to10e5.txt"); \\ Prepared from b-file data with gawk ' { print $2 } '

up_to = #v109812;