A039557 - OEIS

A039557

Numbers whose base-12 representation has the same nonzero number of 9's and 11's.

119, 141, 263, 285, 407, 429, 551, 573, 695, 717, 839, 861, 983, 1005, 1127, 1149, 1271, 1293, 1307, 1319, 1331, 1343, 1355, 1367, 1379, 1391, 1403, 1427, 1428, 1429, 1430, 1431, 1432, 1433, 1434, 1435, 1436, 1438, 1559, 1581, 1593, 1605

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

MATHEMATICA

Select[Range[2000], DigitCount[#, 12, 9]==DigitCount[#, 12, 11]>0&] (* Harvey P. Dale, Jan 30 2015 *)

CROSSREFS

Sequence in context: A124074 A231372 A103154 * A095629 A046007 A333789

Adjacent sequences: A039554 A039555 A039556 * A039558 A039559 A039560

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved