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A047031 Sum{T(i,n-i): i=0,1,...,n}, array T as in A047030. +0
1
1, 2, 3, 5, 9, 18, 32, 63, 124, 245, 490, 964, 1923, 3835, 7652, 15304, 30504, 60973, 121866, 243596, 487192, 973568, 1946851, 3893037, 7784919, 15569838, 31132592, 62262654, 124519328, 249028126, 498056252, 996046984, 1992070217 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A064769 A119002 A047021 this_sequence A056766 A080091 A000602

Adjacent sequences: A047028 A047029 A047030 this_sequence A047032 A047033 A047034

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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