A135126 Numbers such that the digital sums in bases 3, 4, 5 and 6 all are equal.

1, 2, 188, 668, 908, 1388, 1628, 2170, 2171, 2830, 2831, 3908, 4330, 4331, 6490, 6491, 8650, 8651, 10390, 10391, 10629, 12792, 12793, 12794, 17110, 17111, 17290, 17291, 25930, 25931, 36312, 36313, 36314, 37812, 37813, 37814, 41532, 41533, 41534

Offset

1,2

Links

G. C. Greubel, Table of n, a(n) for n = 1..1400

Example

a(3)=188, since ds_3(188)=ds_4(188)=ds_5(188)=ds_6(188)=8, where ds_x=digital sum base x.

Mathematica

Select[Range[3000], Total[IntegerDigits[#, 3]] == Total[IntegerDigits[#, 4]] ==  Total[IntegerDigits[#, 5]] == Total[IntegerDigits[#, 6]] &] (* G. C. Greubel, Sep 27 2016 *)

Crossrefs

Cf. A007953, A054899, A131451, A133620, A133900, A134599, A135100, A135110, A135120, A037308.

Sequence in context: A258426 A163794 A232703 * A053936 A252765 A172801

Adjacent sequences: A135123 A135124 A135125 * A135127 A135128 A135129

Keyword

nonn,base

Author

Hieronymus Fischer, Dec 31 2007

Status

approved