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Search: id:A047087
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A047087 T(2n,n+1), array T as in A047080. +0
1
1, 3, 7, 21, 57, 163, 461, 1319, 3781, 10887, 31435, 91017, 264133, 768095, 2237639, 6529285, 19079573, 55826167, 163538471, 479588845, 1407813437, 4136307799, 12163015661, 35793391663, 105407889929 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A161707 A151267 A091489 this_sequence A104779 A091650 A096240

Adjacent sequences: A047084 A047085 A047086 this_sequence A047088 A047089 A047090

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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