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A076385 Numbers n such that sum of digits in base 7 is a divisor of sum of prime divisors (A008472). 1
2, 3, 5, 7, 8, 9, 42, 49, 78, 84, 105, 114, 115, 126, 130, 154, 156, 161, 168, 170, 186, 228, 235, 252, 258, 294, 305, 336, 343, 350, 357, 366, 371, 372, 378, 402, 410, 425, 429, 430, 434, 442, 444, 455, 456, 460, 474, 504, 516, 520, 555, 558, 574, 588, 616 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..55.

MAPLE

A076385 := proc(n) local i, j, t, t1, sod, sopd; t := NULL; for i from 2 to n do t1 := i; sod := 0; while t1 <> 0 do sod := sod + (t1 mod 7); t1 := floor(t1/7); od; sopd := 0; j := 1; while ithprime(j) <= i do if i mod ithprime(j) = 0 then sopd := sopd+ithprime(j); fi; j := j+1; od; if sopd mod sod = 0 then t := t, i; fi; od; t; end;

CROSSREFS

Cf. A075657, A076380 - A076387.

Sequence in context: A171614 A029601 A182758 * A152604 A028788 A197128

Adjacent sequences:  A076382 A076383 A076384 * A076386 A076387 A076388

KEYWORD

nonn,base

AUTHOR

Floor van Lamoen (fvlamoen(AT)hotmail.com), Oct 08 2002

STATUS

approved

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Last modified September 1 07:07 EDT 2014. Contains 246288 sequences.