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A334376 a(n) is the sum of digits of the n-th Moran number (A001101). 0
9, 3, 9, 6, 9, 9, 12, 3, 6, 9, 7, 8, 9, 12, 9, 10, 15, 18, 3, 9, 11, 6, 12, 13, 9, 14, 15, 9, 10, 12, 21, 6, 11, 9, 12, 15, 13, 7, 12, 14, 9, 15, 18, 16, 9, 17, 15, 18, 9, 10, 12, 18, 18, 21, 9, 11, 12, 18, 24, 15, 18, 27, 3, 8, 9, 10, 15, 18, 3, 7, 9, 12, 16 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..73.

FORMULA

a(n) = A007953(A001101(n)).

EXAMPLE

For n = 42:

- A001101(42) = 555,

- A007953(555) = 15,

- hence a(42) = 15.

PROG

(PARI) for (n=1, 1168, if (n%(s=sumdigits(n))==0 && isprime(n/s), print1 (s", ")))

CROSSREFS

Cf. A001101, A007953, A334375.

Sequence in context: A276558 A196829 A019879 * A003565 A238105 A166203

Adjacent sequences:  A334373 A334374 A334375 * A334377 A334378 A334379

KEYWORD

nonn,base

AUTHOR

Rémy Sigrist, Apr 25 2020

STATUS

approved

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Last modified May 11 21:35 EDT 2021. Contains 343808 sequences. (Running on oeis4.)