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A165737 Positive integers n such that the sum of decimal digits of (16^n-1) is divisible by n. 0
1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 17, 18, 23, 37, 43, 46, 60, 119, 183, 223 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Comparing with A165722 there is one additional term a(8)=9.

No other terms below 10^5.

LINKS

Table of n, a(n) for n=1..22.

PROG

(PARI) isok(n) = (sumdigits(16^n-1) % n) == 0; \\ Michel Marcus, Oct 16 2013

CROSSREFS

Cf. A165722.

Sequence in context: A063949 A073518 A144769 * A033104 A191325 A190209

Adjacent sequences:  A165734 A165735 A165736 * A165738 A165739 A165740

KEYWORD

base,more,nonn

AUTHOR

Zak Seidov, Sep 25 2009

STATUS

approved

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Last modified July 17 15:19 EDT 2019. Contains 325106 sequences. (Running on oeis4.)