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A318456 a(n) = n OR A001065(n), where OR is bitwise-or (A003986) and A001065 = sum of proper divisors. 12
1, 3, 3, 7, 5, 6, 7, 15, 13, 10, 11, 28, 13, 14, 15, 31, 17, 23, 19, 22, 31, 30, 23, 60, 31, 26, 31, 28, 29, 62, 31, 63, 47, 54, 47, 55, 37, 54, 55, 58, 41, 62, 43, 44, 45, 62, 47, 124, 57, 59, 55, 62, 53, 118, 55, 120, 63, 58, 59, 124, 61, 62, 63, 127, 83, 78, 67, 126, 95, 78, 71, 123, 73, 106, 123, 76, 95, 94, 79, 122, 121, 126, 83 (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

Index entries for sequences related to sigma(n)

FORMULA

a(n) = A003986(n, A001065(n)).

a(n) = A000203(n) - A318458(n).

PROG

(PARI) A318456(n) = bitor(n, sigma(n)-n);

CROSSREFS

Cf. A000203, A001065, A003986, A318457, A318458, A318466.

Sequence in context: A258273 A205680 A137695 * A209085 A086799 A218388

Adjacent sequences:  A318453 A318454 A318455 * A318457 A318458 A318459

KEYWORD

nonn,base

AUTHOR

Antti Karttunen, Aug 26 2018

STATUS

approved

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Last modified January 20 23:29 EST 2020. Contains 331104 sequences. (Running on oeis4.)