A048315 Numbers whose base-4 expansions, read from left to right, have run lengths that strictly decrease.

0, 1, 2, 3, 5, 10, 15, 20, 21, 22, 23, 40, 41, 42, 43, 60, 61, 62, 63, 84, 85, 86, 87, 168, 169, 170, 171, 252, 253, 254, 255, 336, 340, 341, 342, 343, 346, 351, 672, 677, 680, 681, 682, 683, 687, 1008, 1013, 1018, 1020, 1021, 1022, 1023, 1345, 1346, 1347

Offset

0,3

Links

Table of n, a(n) for n=0..54.

Crossrefs

Cf. A037013, A043693, A043707, A044815, A044953.

Sequence in context: A297253 A014192 A250746 * A093832 A050947 A037387

Adjacent sequences: A048312 A048313 A048314 * A048316 A048317 A048318

Keyword

nonn,base

Author

Patrick De Geest, Feb 15 1999

Status

approved