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A122849
Diagonal sums of Bessel related triangle A122848.
1
1, 0, 1, 1, 1, 3, 4, 6, 16, 25, 46, 120, 211, 441, 1156, 2233, 5104, 13581, 28351, 69345, 188101, 419320, 1082566, 2998776, 7074211, 19099158, 54057004, 133993951, 375814531
OFFSET
0,6
FORMULA
a(n)=sum{k=0..floor(n/2), k!*C(n-k,k)/((3k-n)!*2^(n-2k))}
CROSSREFS
Sequence in context: A089249 A173944 A092933 * A068573 A138577 A298149
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Sep 14 2006
STATUS
approved