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A006129 a(0),a(1),a(2),... satisfy Sum a(k) binomial(n,k) (k=0..n) = 2^binomial(n,2), for n=0.1,...
(Formerly M3678)
+0
10
1, 0, 1, 4, 41, 768, 27449, 1887284, 252522481, 66376424160, 34509011894545, 35645504882731588, 73356937912127722841, 301275024444053951967648, 2471655539737552842139838345, 40527712706903544101000417059892 (list; graph; listen)
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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.


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