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A098696 Main diagonal of array in A073146. 1
1, 4, 104, 6544, 765344, 143639104, 39511297664, 14979797833984, 7487442077817344, 4770988535512474624, 3774873839360539879424, 3630982576832133263233024, 4172729918808369709126098944 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Diagonal of Euler-Seidel matrix with start sequence A000670.

FORMULA

Sum[k=0..n, C(n, k) * A000670(2n-k)].

CROSSREFS

Sequence in context: A181396 A196979 A197164 * A013054 A024262 A012958

Adjacent sequences:  A098693 A098694 A098695 * A098697 A098698 A098699

KEYWORD

nonn

AUTHOR

Ralf Stephan, Sep 23 2004

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Last modified February 14 05:09 EST 2012. Contains 205570 sequences.