A032535 Odd numbers that, when expressed in base 2 and then interpreted in base 10, yield a multiple of the original number.

1, 21, 273, 2231, 10101, 28261, 611123, 1200341, 3427673, 8108919, 38636301, 51484647, 2202416417, 11102657671, 42822560781

Offset: 1

Author

Patrick De Geest, Apr 15 1998

Keywords

• nonn
• base
• more

Examples

			273 is a term: 273_10 = 100010001_2; 100010001 = 273*366337. - _Jon E. Schoenfield_, Oct 25 2019
		

Crossrefs

= odd(A032533). See also A032532 for explanation.

Programs

Mathematica

Select[Range[1, 10^6, 2], Mod[ FromDigits@ IntegerDigits[#, 2], #] == 0 &] (* Giovanni Resta, Jul 12 2016 *)

Extensions

a(13)-a(15) from Giovanni Resta, Jul 12 2016