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A005190
Central quadrinomial coefficients: largest coefficient of (1+x+x^2+x^3)^n.
(Formerly M3456)
+0
11
1, 1, 4, 12, 44, 155, 580, 2128, 8092, 30276, 116304, 440484, 1703636, 6506786, 25288120, 97181760, 379061020, 1463609356, 5724954544, 22187304112, 86981744944, 338118529539, 1327977811076, 5175023913008, 20356299454276
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 5 08:23 EST 2009. Contains 170348 sequences.
AT&T Labs Research
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