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A014610 Tetranacci numbers arising in connection with current algebras sp(2)_n. +0
2
3, 5, 10, 19, 37, 71, 137, 264, 509, 981, 1891, 3645, 7026, 13543, 26105, 50319, 96993, 186960, 360377, 694649, 1338979, 2580965, 4974970, 9589563, 18484477, 35629975, 68678985, 132383000, 255176437 (list; graph; listen)
OFFSET

0,1

LINKS

Reference

FORMULA

G.f.: (3+2x+2x^2+x^3)/(1-x-x^2-x^3-x^4).

CROSSREFS

Adjacent sequences: A014607 A014608 A014609 this_sequence A014611 A014612 A014613

Sequence in context: A018168 A084321 A133999 this_sequence A117591 A003055 A018101

KEYWORD

nonn

AUTHOR

Nouredine Chair (chair(AT)sissa.it)

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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