A039220 Numbers whose base-12 representation has the same number of 1's and 2's.

0, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 25, 36, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 99, 100, 101, 102, 103, 104

Offset

1,2

Links

Table of n, a(n) for n=1..69.

Prog

(PARI) f(n, b, d)=#select(x->x==d, digits(n, b));
for(n=0, 110, if (f(n, 12, 1)==f(n, 12, 2), print1(n, ", "))); \\ Petros Hadjicostas, Jul 08 2020

Crossrefs

Sequence in context: A329779 A072809 A114904 * A048135 A304812 A026500

Adjacent sequences: A039217 A039218 A039219 * A039221 A039222 A039223

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved