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A144703 Denominators of triangle S(n,k), n>=0, 0<=k<=ceiling((3n+1)/2): S(n,k) is the coefficient of x^k in polynomial s_n(x), used to define continuous and n times differentiable sigmoidal transfer functions. 3
2, 2, 2, 1, 2, 2, 1, 1, 1, 2, 2, 4, 1, 2, 2, 4, 2, 16, 1, 16, 1, 16, 2, 16, 2, 2, 1, 2, 1, 2, 1, 2, 2, 2, 16, 1, 4, 1, 8, 1, 4, 2, 16, 1, 2, 32, 1, 32, 1, 16, 1, 16, 2, 32, 1, 32, 2, 256, 1, 128, 1, 256, 1, 64, 1, 256, 1, 128, 2, 256, 2, 128, 1, 64, 1, 128, 1, 32, 1, 128, 2, 64, 2, 128, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Alois P. Heinz, Rows n = 0..114, flattened

MAPLE

seq(seq(denom(coeff(s(n)(x), x, k)), k=0..ceil((3*n+1)/2)), n=0..10);

CROSSREFS

See A144702 for more information on S(n,k).

Sequence in context: A105154 A076447 A136690 * A276825 A270644 A097026

Adjacent sequences:  A144700 A144701 A144702 * A144704 A144705 A144706

KEYWORD

frac,tabf,nonn,look

AUTHOR

Alois P. Heinz, Sep 19 2008

STATUS

approved

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Last modified May 23 19:07 EDT 2019. Contains 323528 sequences. (Running on oeis4.)