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A044121 Numbers n such that string 3,1 occurs in the base 6 representation of n but not of n-1. 1
19, 55, 91, 114, 127, 163, 199, 235, 271, 307, 330, 343, 379, 415, 451, 487, 523, 546, 559, 595, 631, 667, 684, 739, 762, 775, 811, 847, 883, 919, 955, 978, 991, 1027, 1063, 1099, 1135, 1171, 1194, 1207, 1243, 1279, 1315, 1351 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 6], {3, 1}]>0, 1, 0], {n, 1500}], {0, 1}][[All, 2]] (* Harvey P. Dale, Jan 05 2023 *)
CROSSREFS
Sequence in context: A051871 A371110 A371056 * A044502 A069131 A124712
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified June 14 11:26 EDT 2024. Contains 373397 sequences. (Running on oeis4.)