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A002436
E.g.f.: Sum_{n >= 0} a(n)*x^(2*n)/(2*n)! = sec(2x).
(Formerly M3701 N1512)
+0
8
1, 4, 80, 3904, 354560, 51733504, 11070525440, 3266330312704, 1270842139934720, 630424777638805504, 388362339077351014400, 290870261262635870715904, 260290690801376575335956480
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Maintained by
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.
AT&T Labs Research
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