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A326040 a(n) = sigma(n) - A008833(sigma(n)). 6
0, 2, 0, 6, 5, 8, 4, 14, 12, 9, 8, 24, 13, 20, 20, 30, 9, 38, 16, 41, 16, 0, 20, 56, 30, 41, 36, 52, 29, 36, 16, 54, 32, 45, 32, 90, 37, 56, 52, 81, 41, 80, 40, 80, 77, 36, 32, 120, 56, 92, 36, 49, 45, 116, 36, 116, 64, 81, 56, 164, 61, 80, 100, 126, 80, 0, 64, 117, 80, 0, 36, 194, 73, 113, 120, 136, 80, 164, 64, 185, 0, 117, 80 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..20000

Index entries for sequences related to sigma(n)

FORMULA

a(n) = A000203(n) - A326039(n) = A000203(n) - A008833(A000203(n)).

a(n) = A326055(A000203(n)).

PROG

(PARI)

A008833(n) = (n/core(n));

A326039(n) = A008833(sigma(n));

A326040(n) = (sigma(n)-A008833(sigma(n)));

(PARI)

A326055(n) = (n-A008833(n));

A326040(n) = A326055(sigma(n));

CROSSREFS

Cf. A000203, A008833, A326039, A326055.

Sequence in context: A140247 A271170 A111520 * A145419 A276763 A142354

Adjacent sequences:  A326037 A326038 A326039 * A326041 A326042 A326043

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jun 05 2019

STATUS

approved

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)