0,6
L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 120, D(n;1,5,7).
round((n^2+13*n+36)/70).
Sequence in context: A121828 A057357 A029123 this_sequence A029095 A134403 A124882
Adjacent sequences: A025774 A025775 A025776 this_sequence A025778 A025779 A025780
nonn
njas
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