A044957 -id:A044957 - cp's OEIS frontend

A048305 Numbers whose base-8 expansions, read from left to right, have run lengths that strictly increase.

0, 1, 2, 3, 4, 5, 6, 7, 9, 18, 27, 36, 45, 54, 63, 64, 73, 82, 91, 100, 109, 118, 127, 128, 137, 146, 155, 164, 173, 182, 191, 192, 201, 210, 219, 228, 237, 246, 255, 256, 265, 274, 283, 292, 301, 310, 319, 320, 329, 338, 347, 356, 365, 374, 383, 384, 393, 402

Offset: 0

Patrick De Geest, Feb 15 1999

Cf. A037015, A043697, A043711, A044819, A044957.

Select[Range[0,500],Min[Differences[Length/@Split[IntegerDigits[ #,8]]]]>0&] (* Harvey P. Dale, Dec 06 2018 *)

A048319 Numbers whose base-8 expansions, read from left to right, have run lengths that strictly decrease.

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 6, 7, 9, 18, 27, 36, 45, 54, 63, 72, 73, 74, 75, 76, 77, 78, 79, 144, 145, 146, 147, 148, 149, 150, 151, 216, 217, 218, 219, 220, 221, 222, 223, 288, 289, 290, 291, 292, 293, 294, 295, 360, 361, 362, 363, 364, 365, 366, 367, 432, 433, 434, 435

Offset: 0

Patrick De Geest, Feb 15 1999

Cf. A037013, A043697, A043711, A044819, A044957.

Select[Range[0,500],Max[Differences[Length/@Split[IntegerDigits[#,8]]]] < 0&] (* Harvey P. Dale, Nov 14 2020 *)

cp's OEIS Frontend

A048305 Numbers whose base-8 expansions, read from left to right, have run lengths that strictly increase.

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