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

Author

Erich Friedman, Jul 21 2001

Keywords

• base
• nonn

Examples

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

Links

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

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.

Programs

Mathematica

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

Extensions

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