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A044871 Positive integers having the same number of base-15 runs of odd length as even. 1
225, 240, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 257, 273, 289, 305, 321, 337, 353, 369, 385, 401, 417, 433, 449, 450, 466, 480, 481, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 498 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..10500

MATHEMATICA

b15rQ[n_]:=Module[{r=Length/@Split[IntegerDigits[n, 15]]}, Count[r, _?OddQ]==Length[r]/2]; Select[Range[8000], b15rQ] (* Vincenzo Librandi, Jan 18 2017 *)

CROSSREFS

Sequence in context: A340501 A265432 A247885 * A202005 A207639 A077347

Adjacent sequences:  A044868 A044869 A044870 * A044872 A044873 A044874

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified June 18 11:58 EDT 2021. Contains 345098 sequences. (Running on oeis4.)