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A132987 Column 0 of triangle A132986. 1
1, 1, 2, 12, 240, 18480, 6708240, 14088352320, 203200845886080, 23190071108511726720, 23647206583059346913915520, 239883631139512760372860490507520 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Let triangular matrix T = A132986, then row n of T = row n-1 of T^n (shift right 1 column) with T(n,0)=T(n,1) for n>0.

LINKS

Table of n, a(n) for n=0..11.

CROSSREFS

Cf. A132986.

Sequence in context: A141083 A132877 A007685 * A087046 A111403 A007986

Adjacent sequences:  A132984 A132985 A132986 * A132988 A132989 A132990

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Sep 07 2007

STATUS

approved

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Last modified May 20 21:01 EDT 2013. Contains 225464 sequences.