A351943 - OEIS

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A351943

a(n) = A069359(A181819(n)).

2

0, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 5, 1, 2, 2, 1, 1, 5, 1, 5, 2, 2, 1, 7, 1, 2, 1, 5, 1, 4, 1, 1, 2, 2, 2, 3, 1, 2, 2, 7, 1, 4, 1, 5, 5, 2, 1, 9, 1, 5, 2, 5, 1, 7, 2, 7, 2, 2, 1, 10, 1, 2, 5, 1, 2, 4, 1, 5, 2, 4, 1, 8, 1, 2, 5, 5, 2, 4, 1, 9, 1, 2, 1, 10, 2, 2, 2, 7, 1, 10, 2, 5, 2, 2, 2, 13, 1, 5, 5, 3, 1, 4, 1, 7, 4

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OFFSET

1,6

LINKS

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

Index entries for sequences computed from exponents in factorization of n

PROG

(PARI)

A069359(n) = (n*sumdiv(n, d, isprime(d)/d)); \\ From A069359

A181819(n) = factorback(apply(e->prime(e), (factor(n)[, 2])));

A351943(n) = A069359(A181819(n));

CROSSREFS

Cf. A069359, A181819.

Coincides with A351942 on the positions given by A130091.

Sequence in context: A229969 A260909 A351945 * A114717 A318670 A323409

Adjacent sequences: A351940 A351941 A351942 * A351944 A351945 A351946

KEYWORD

nonn

AUTHOR

Antti Karttunen, Apr 02 2022

STATUS

approved