login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A076383 Numbers n such that sum of digits in base 5 is a divisor of sum of prime divisors (A008472). 1
2, 3, 5, 21, 25, 27, 30, 35, 42, 78, 105, 110, 115, 123, 125, 126, 130, 132, 141, 150, 153, 155, 159, 161, 170, 175, 186, 187, 195, 201, 228, 230, 231, 252, 258, 260, 264, 276, 290, 301, 327, 329, 340, 357, 372, 378, 381, 395, 396, 402, 410, 411, 429, 434 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

MAPLE

A076383 := 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 5); t1 := floor(t1/5); 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, A076381 - A076387.

Sequence in context: A228833 A320950 A291673 * A024766 A058959 A065398

Adjacent sequences:  A076380 A076381 A076382 * A076384 A076385 A076386

KEYWORD

nonn,base

AUTHOR

Floor van Lamoen, Oct 08 2002

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 19 03:13 EDT 2019. Contains 328211 sequences. (Running on oeis4.)