A318514 - OEIS

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A318514

a(n) = n OR (greatest proper divisor of n).

1, 3, 3, 6, 5, 7, 7, 12, 11, 15, 11, 14, 13, 15, 15, 24, 17, 27, 19, 30, 23, 31, 23, 28, 29, 31, 27, 30, 29, 31, 31, 48, 43, 51, 39, 54, 37, 55, 47, 60, 41, 63, 43, 62, 47, 63, 47, 56, 55, 59, 51, 62, 53, 63, 63, 60, 59, 63, 59, 62, 61, 63, 63, 96, 77, 99, 67, 102, 87, 103, 71, 108, 73, 111, 91, 110, 79, 111, 79, 120, 91, 123, 83, 126

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

OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

Index entries for sequences related to binary expansion of n

FORMULA

a(n) = A003986(n, A032742(n)).

a(n) = n + A032742(n) - A318515(n).

PROG

(PARI)

A032742(n) = if(1==n, n, n/vecmin(factor(n)[, 1]));