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A000192
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Generalized Euler numbers c(6,n).
(Formerly M2167 N0865)
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1
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2, 46, 7970, 3487246, 2849229890, 3741386059246, 7205584123783010, 19133892392367261646, 67000387673723462963330, 299131045427247559446422446, 1658470810032820740402966226850
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| D. Shanks, Generalized Euler and class numbers, Math. Comp. 21 (1967), 689-694; 22 (1968), 699.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
| Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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MATHEMATICA
| L[ a_, s_, t_:10000 ] := Plus@@Table[ N[ JacobiSymbol[ -a, 2k+1 ](2k+1)^(-s), 30 ], {k, 0, t} ]; c[ a_, n_, t_:10000 ] := (2n)!/Sqrt[ a ](2a/Pi)^(2n+1)L[ a, 2n+1, t ]
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CROSSREFS
| Cf. A000191.
Sequence in context: A173586 A074041 A000191 * A196197 A124690 A195877
Adjacent sequences: A000189 A000190 A000191 * A000193 A000194 A000195
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms and Mathematica program from Eric Weisstein (eric(AT)weisstein.com), Aug 30, 2001
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