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A062846 When expressed in base 2 and then interpreted in base 4, is a multiple of the original number. 8
0, 1, 2, 4, 7, 8, 14, 16, 21, 28, 31, 32, 42, 56, 62, 64, 73, 84, 112, 124, 127, 128, 146, 168, 219, 224, 248, 254, 256, 273, 292, 336, 341, 438, 448, 496, 508, 511, 512, 546, 584, 672, 682, 876, 896, 992, 1016, 1022, 1024, 1057, 1092, 1168, 1344, 1364, 1533 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

From Rémy Sigrist, Mar 15 2017: (Start)

Also numbers n such that A000695(n) is a multiple of n.

If n belongs to this sequence, then 2*n also belongs to this sequence.

If 2*n belongs to this sequence, then n also belongs to this sequence.

(End)

LINKS

Rémy Sigrist, Table of n, a(n) for n = 0..2000

EXAMPLE

7 in base 2 is 111, which interpreted in base 4 is 21=3*7

MATHEMATICA

Join[{0}, Select[Range[1600], Divisible[FromDigits[IntegerDigits[#, 2], 4], #]&]] (* Harvey P. Dale, Nov 29 2015 *)

CROSSREFS

Cf. A000695.

Sequence in context: A322386 A309583 A327478 * A102824 A324588 A201364

Adjacent sequences:  A062843 A062844 A062845 * A062847 A062848 A062849

KEYWORD

base,nonn

AUTHOR

Erich Friedman, Jul 21 2001

STATUS

approved

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Last modified November 28 05:30 EST 2021. Contains 349401 sequences. (Running on oeis4.)