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A039122
Numbers whose base-10 representation has the same number of 1's and 4's.
0
0, 2, 3, 5, 6, 7, 8, 9, 14, 20, 22, 23, 25, 26, 27, 28, 29, 30, 32, 33, 35, 36, 37, 38, 39, 41, 50, 52, 53, 55, 56, 57, 58, 59, 60, 62, 63, 65, 66, 67, 68, 69, 70, 72, 73, 75, 76, 77, 78, 79, 80, 82, 83, 85, 86, 87, 88, 89, 90, 92, 93, 95, 96, 97, 98, 99, 104, 124, 134
OFFSET
1,2
MATHEMATICA
Select[Range[0, 150], DigitCount[#, 10, 1]==DigitCount[#, 10, 4]&] (* Harvey P. Dale, Nov 14 2024 *)
CROSSREFS
Sequence in context: A117578 A244217 A351224 * A355547 A031975 A028729
KEYWORD
nonn,base,easy,changed
STATUS
approved