A062923 Numbers k that, when expressed in base 4 and then interpreted in base 8, give a multiple of k.

0, 1, 2, 3, 4, 8, 12, 16, 30, 32, 48, 64, 120, 128, 166, 192, 256, 278, 480, 512, 664, 765, 768, 1024, 1112, 1390, 1682, 1803, 1920, 2048, 2426, 2656, 3060, 3072, 4096, 4365, 4448, 5446, 5560, 6728, 7212, 7441, 7680, 8192, 9704, 9945, 10624, 12240, 12288, 16384, 17460

Offset

1,3

Links

Harvey P. Dale, Table of n, a(n) for n = 1..100

Example

8 in base 4 is 20, which interpreted in base 8 is 16 = 2*8.

Mathematica

Join[{0}, Select[Range[18000], Mod[FromDigits[IntegerDigits[#, 4], 8], #]==0&]] (* Harvey P. Dale, Feb 10 2024 *)

Crossrefs

Cf. A062845, A062846, A062847, A062848, A062849, A062850, A062853, A062864, A062865, A062884, A062889, A062891, A062920, A062921, A062922, A062925, A062928, A062929, A062930, A062931, A062934, A062937, A062939, A062942, A062943, A062944.

Sequence in context: A115271 A189375 A262975 * A360363 A133464 A273731

Adjacent sequences: A062920 A062921 A062922 * A062924 A062925 A062926

Keyword

base,nonn

Author

Erich Friedman, Jul 21 2001

Extensions

Offset changed to 1 and more terms from Georg Fischer, Mar 13 2023

Status

approved