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A026726 T(2n,n), T given by A026725. +0
1
1, 2, 7, 27, 108, 440, 1812, 7514, 31307, 130883, 548547, 2303413, 9686617, 40783083, 171868037, 724837891, 3058850316, 12915186640, 54554594416, 230526280814, 974414815782, 4119854160332, 17422801069670, 73695109608352 (list; graph; listen)
OFFSET

0,2

REFERENCES

Paul Barry, A Catalan Transform and Related Transformations on Integer Sequences, Journal of Integer Sequences, Vol. 8 (2005), Article 05.4.5.

CROSSREFS

Adjacent sequences: A026723 A026724 A026725 this_sequence A026727 A026728 A026729

Sequence in context: A129013 A024429 A136412 this_sequence A026759 A005768 A106225

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified May 16 19:35 EDT 2008. Contains 139737 sequences.


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