A062929 Numbers k that, when expressed in base 5 and then interpreted in base 7, give a multiple of k.

0, 1, 2, 3, 4, 3640, 7863, 7894, 8186, 11830, 18200, 39315, 39470, 40930, 59150, 2521602, 3278326, 4167678, 13196470, 17870857, 17992485, 20838390, 36724952, 58516102, 73231902, 89354285, 89962425, 105564531, 200046408, 301764432, 446771425, 449812125, 633387186

Offset: 1

Author

Erich Friedman, Jul 21 2001

Keywords

• base
• nonn

Examples

			3640 in base 5 is 104030, which interpreted in base 7 is 18200=5*3640.
		

Crossrefs

Cf. A062845, A062846, A062847, A062848, A062849, A062850, A062853, A062864, A062865, A062884, A062889, A062891, A062920, A062921, A062922, A062923, A062925, A062928, A062930, A062931, A062934, A062937, A062939, A062942, A062943, A062944.

Programs

Mathematica

Select[Range[0,20*10^6],Divisible[FromDigits[IntegerDigits[#,5],7],#]&] (* Harvey P. Dale, Jul 18 2015 *)

Extensions

More terms from Naohiro Nomoto, Aug 06 2001

Offset changed to 1 and a(22)-a(33) from Georg Fischer, Mar 13 2023