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A062922
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Numbers k that, when expressed in base 4 and then interpreted in base 7, give a multiple of k.
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12
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0, 1, 2, 3, 33, 219, 840, 1055, 4220, 16880, 95322, 178500, 714000, 981540, 1387680, 7676775, 7924262, 12418476, 12419535, 16552116, 19188717, 44591130, 66079524, 77842213, 178364520, 294607851, 363167196, 610436322, 823488858, 950204780
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OFFSET
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1,3
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LINKS
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EXAMPLE
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33 in base 4 is 201, which interpreted in base 7 is 99 = 3*33.
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MATHEMATICA
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Select[Range[0, 20*10^6], Divisible[FromDigits[IntegerDigits[#, 4], 7], #]&] (* Harvey P. Dale, Nov 22 2015 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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Offset changed to 1 and a(22)-a(30) from Georg Fischer, Mar 13 2023
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STATUS
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approved
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