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A044101
Numbers n such that string 4,4 occurs in the base 5 representation of n but not of n-1.
1
24, 49, 74, 99, 120, 149, 174, 199, 224, 245, 274, 299, 324, 349, 370, 399, 424, 449, 474, 495, 524, 549, 574, 599, 649, 674, 699, 724, 745, 774, 799, 824, 849, 870, 899, 924, 949, 974, 995, 1024, 1049, 1074, 1099, 1120, 1149
OFFSET
1,1
LINKS
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 5], {4, 4}]>0, 1, 0], {n, 1500}], {0, 1}][[;; , 2]] (* Harvey P. Dale, Feb 18 2025 *)
CROSSREFS
Sequence in context: A023739 A031475 A045204 * A044482 A045294 A258366
KEYWORD
nonn,base,changed
STATUS
approved