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A033039 Numbers all of whose base 14 digits are odd. 1
1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 43, 45, 47, 49, 51, 53, 55, 71, 73, 75, 77, 79, 81, 83, 99, 101, 103, 105, 107, 109, 111, 127, 129, 131, 133, 135, 137, 139, 155, 157, 159, 161, 163, 165, 167, 183, 185, 187, 189, 191 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

MAPLE

f:= proc(x) local r;

  r:= convert(x, base, 7);

  add((1+2*r[i])*14^(i-1), i=0..nops(r))

end proc:

seq(seq(f(x)-3*14^d, x=7^d..2*7^d-1), d=1..3); # Robert Israel, Mar 30 2018

CROSSREFS

Sequence in context: A082453 A033041 A077797 * A161957 A082720 A033037

Adjacent sequences:  A033036 A033037 A033038 * A033040 A033041 A033042

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 20 18:46 EDT 2018. Contains 304347 sequences. (Running on oeis4.)