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Search: id:A076428
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| A076428 |
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Numbers n such that sum of digits of n in factorial base divides n. |
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+0
1
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| 1, 2, 4, 6, 8, 10, 12, 14, 15, 20, 24, 28, 30, 36, 40, 42, 48, 50, 56, 60, 63, 70, 72, 80, 84, 90, 96, 100, 108, 110, 120, 121, 132, 144, 150, 153, 156, 168, 180, 192, 200, 204, 216, 220, 228, 231, 240, 250, 252, 264, 276, 288, 290, 291, 295, 300, 304, 305, 312, 315
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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28 written in factorial base is 220, the sum of digits is thus 4 and 4 divides 28, so 28 is included in the sequence.
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MAPLE
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A076428 := proc(n) local i, j, m, t, t1; t := NULL; for j from 1 to n do m := j; i := 2; t1 := 0; while m>0 do t1 := t1 + (m mod i!); m := floor(m/i!); i := i+1; od; if j mod t1 = 0 then t := t, j fi; od; t; end;
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CROSSREFS
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Sequence in context: A096922 A055954 A055956 this_sequence A055958 A069816 A088116
Adjacent sequences: A076425 A076426 A076427 this_sequence A076429 A076430 A076431
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KEYWORD
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nonn,base
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AUTHOR
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Floor van Lamoen (fvlamoen(AT)hotmail.com), Oct 10 2002
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