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A135125
Numbers such that the digital sum base 2 and the digital sum base 5 and the digital sum base 10 all are equal.
1
1, 1300, 1301, 5010, 5011, 7102, 7103, 10050, 10051, 10235, 11135, 12250, 12251, 14015, 16102, 16103, 20060, 20061, 20206, 20207, 23230, 23231, 32012, 32013, 32302, 32303, 32410, 32411, 44000, 44001, 45010, 45011, 50012, 50013, 50300
OFFSET
1,2
LINKS
EXAMPLE
a(2)=1300, since ds_2(1300)=ds_5(1300)=ds_10(1300), where ds_x=digital sum base x.
MATHEMATICA
Select[Range[10000], Total[IntegerDigits[#, 2]] == Total[IntegerDigits[#, 5]] == Total[IntegerDigits[#, 10]] &] (* G. C. Greubel, Sep 27 2016 *)
KEYWORD
nonn,base
AUTHOR
Hieronymus Fischer, Dec 31 2007
STATUS
approved