This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A118867 Numbers n such that 2^n, 3^n and 5^n have even digit sum. 5
 15, 37, 46, 47, 64, 71, 83, 84, 90, 102, 106, 107, 116, 120, 122, 135, 149, 154, 168, 173, 179, 180, 181, 185, 193, 195, 198, 200, 210, 222, 224, 229, 232, 239, 242, 248, 265, 289, 299, 304, 310, 327, 330, 332, 333, 347, 356, 364, 367, 369, 375, 383, 402, 407 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE {2^15,3^15,5^15}={32768,14348907,30517578125} with even digit sum {26,36,44}. PROG (PARI) isok(n) = !(sumdigits(2^n) % 2) && !(sumdigits(3^n) % 2) && !(sumdigits(5^n) % 2); \\ Michel Marcus, Oct 10 2013 CROSSREFS Subsequence of A118734. Sequence in context: A166146 A229235 A293156 * A260796 A296179 A181362 Adjacent sequences:  A118864 A118865 A118866 * A118868 A118869 A118870 KEYWORD base,nonn AUTHOR Zak Seidov, May 24 2006 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.

Last modified May 22 05:03 EDT 2019. Contains 323473 sequences. (Running on oeis4.)