A023746 Plaindromes: numbers whose digits in base 4 are in nondecreasing order.

0, 1, 2, 3, 5, 6, 7, 10, 11, 15, 21, 22, 23, 26, 27, 31, 42, 43, 47, 63, 85, 86, 87, 90, 91, 95, 106, 107, 111, 127, 170, 171, 175, 191, 255, 341, 342, 343, 346, 347, 351, 362, 363, 367, 383, 426, 427, 431, 447, 511, 682, 683, 687, 703, 767, 1023, 1365, 1366

Offset

1,3

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..500

Mathematica

Select[Range[0, 1366], LessEqual@@IntegerDigits[#, 4]&] (* Ray Chandler, Jan 06 2014 *)

Crossrefs

Sequence in context: A032851 A102830 A031989 * A357425 A090034 A037016

Adjacent sequences: A023743 A023744 A023745 * A023747 A023748 A023749

Keyword

nonn,base,easy

Author

Olivier Gérard

Extensions

Offset set to 1 by Ray Chandler, Jan 06 2014

Status

approved