0,3
L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 120, D(n;1,2,7).
round( (n+3)*(n+7)/28).
Adjacent sequences: A025761 A025762 A025763 this_sequence A025765 A025766 A025767
Sequence in context: A111581 A116572 A062049 this_sequence A011881 A076678 A029024
nonn
njas
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