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A026887 T(2n+1,n+1), T given by A026769. +0
1
1, 3, 11, 44, 186, 819, 3725, 17402, 83156, 405116, 2006696, 10083578, 51303146, 263851841, 1369807435, 7170160392, 37803475750, 200584271466, 1070306614530, 5739790997296, 30919312935436, 167228980869678, 907759276349466 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A121220 A068091 A001207 this_sequence A063018 A018963 A030815

Adjacent sequences: A026884 A026885 A026886 this_sequence A026888 A026889 A026890

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.

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