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A039378
Numbers whose base-9 representation has the same nonzero number of 3's and 4's.
0
31, 39, 112, 120, 193, 201, 247, 256, 265, 279, 280, 281, 284, 285, 286, 287, 292, 301, 310, 319, 327, 336, 345, 351, 352, 353, 356, 357, 358, 359, 372, 381, 390, 399, 436, 444, 517, 525, 598, 606, 679, 687, 760, 768, 841, 849, 922, 930, 976, 985, 994
OFFSET
1,1
MATHEMATICA
Select[Range[1000], DigitCount[#, 9, 3]==DigitCount[#, 9, 4]>0&] (* Harvey P. Dale, Apr 17 2022 *)
CROSSREFS
Cf. A007095.
Sequence in context: A247251 A053237 A348518 * A043201 A043981 A146333
KEYWORD
nonn,base,easy
STATUS
approved