

A067862


Numbers n that divide the sum of digits of 3^n.


8




OFFSET

1,2


COMMENTS

No further terms below 200000.  Sascha Kurz, Mar 19 2002
No further terms below 1000000  Harvey P. Dale, Dec 01 2010
Almost certainly there are no further terms.
All terms greater than 1 are multiples of 3.  Alonso del Arte, Oct 08 2013
Numbers n such that A175435(n) = 0.  Michel Marcus, Oct 09 2013


LINKS

Table of n, a(n) for n=1..10.


EXAMPLE

6 divides the sum of digits of 3^6 (i.e., 7 + 2 + 9 = 18), so it belongs to the sequence.


MATHEMATICA

Select[Range[1000000], Divisible[Total[IntegerDigits[3^#]], #] &] (* Harvey P. Dale, Dec 01 2010 *)


CROSSREFS

Cf. A004166, A175169, A175435.
Sequence in context: A296110 A019461 A223556 * A062927 A178467 A193802
Adjacent sequences: A067859 A067860 A067861 * A067863 A067864 A067865


KEYWORD

nonn,base


AUTHOR

Shyam Sunder Gupta and Amarnath Murthy, Feb 16 2002


EXTENSIONS

Checked and found no further terms up to n = 1000000.  Harvey P. Dale, Dec 01 2010


STATUS

approved



