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Search: id:A090581
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| A090581 |
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Number of numbers with 6 decimal digits and sum of digits = n. |
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+0
3
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| 1, 6, 21, 56, 126, 252, 462, 792, 1287, 2001, 2992, 4317, 6027, 8162, 10746, 13782, 17247, 21087, 25212, 29496, 33787, 37917, 41712, 45002, 47631, 49467, 50412, 50412, 49467, 47631, 45002, 41712, 37917, 33787, 29496, 25212, 21087, 17247, 13782, 10746, 8162, 6027, 4317, 2992, 2001, 1287, 792, 462, 252, 126, 56, 21, 6, 1
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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There are 900000 6-digit numbers, the smallest being 100000 and the largest 999999.
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EXAMPLE
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a(2)=6: 100001, 100010, 100100, 101000, 110000, 200000.
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PROGRAM
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(PARI) b=vector(54, i, 0); for(n=100000, 999999, a=eval(Vec(Str(n))); b[sum(j=1, 6, a[j])]++); for(n=1, 54, print1(b[n], ", ")) - Herman Jamke (hermanjamke(AT)fastmail.fm), Oct 19 2006
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CROSSREFS
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Cf. A071817 3-digit numbers, A090579 4-digit numbers, A090580 5-digit numbers.
Sequence in context: A008488 A120478 A023031 this_sequence A000389 A140228 A006090
Adjacent sequences: A090578 A090579 A090580 this_sequence A090582 A090583 A090584
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KEYWORD
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base,fini,full,nonn
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AUTHOR
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Hugo Pfoertner (hugo(AT)pfoertner.org), Jan 12 2004
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