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Search: id:A026156
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A026156 a(n) = T(2n-1,n), where T is the array in A026148. +0
1
1, 4, 20, 111, 616, 3464, 19656, 112370, 646272, 3735324, 21678696, 126256361, 737513400, 4319243760, 25352692620, 149108262264, 878502339712, 5184007871160, 30633757767144, 181253849830625 (list; graph; listen)
OFFSET

2,2
CROSSREFS

Sequence in context: A153295 A006770 A158827 this_sequence A025183 A014523 A153299

Adjacent sequences: A026153 A026154 A026155 this_sequence A026157 A026158 A026159

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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