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A112544
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Denominators of fractions n/m in array by anti-diagonals.
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1
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1, 1, 2, 1, 1, 3, 1, 2, 3, 4, 1, 1, 1, 2, 5, 1, 2, 3, 4, 5, 6, 1, 1, 3, 1, 5, 3, 7, 1, 2, 1, 4, 5, 2, 7, 8, 1, 1, 3, 2, 1, 3, 7, 4, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 1, 1, 1, 5, 1, 7, 2, 3, 5, 11, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 1, 3, 2, 5, 3, 1, 4, 9, 5, 11, 6, 13, 1, 2, 1, 4, 1, 2, 7, 8, 3
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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PROG
| (PARI) t1(n)=binomial(floor(3/2+sqrt(2*n)), 2)-n+1 t2(n)=n-binomial(floor(1/2+sqrt(2*n)), 2) vector(100, n, t2(n)/gcd(t1(n), t2(n)))
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CROSSREFS
| Numerators in A112543. See comments and references there.
Sequence in context: A188542 A029284 A123275 * A198789 A134521 A131375
Adjacent sequences: A112541 A112542 A112543 * A112545 A112546 A112547
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KEYWORD
| easy,frac,nonn,tabl
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AUTHOR
| Frank Adams-Watters (FrankTAW(AT)Netscape.net), Sep 11 2005
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EXTENSIONS
| Keyword tabl added by Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Sep 02 2009
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