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A143074
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Numerator of Euler(n,2).
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1
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1, 3, 2, 9, 2, 3, 2, 33, 2, -27, 2, 699, 2, -5457, 2, 929601, 2, -3202287, 2, 221930589, 2, -4722116517, 2, 968383680843, 2, -14717667114147, 2, 2093660879252679, 2, -86125672563201177, 2, 129848163681107302017, 2, -868320396104950823607, 2, 209390615747646519456969
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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CROSSREFS
| For denominators see A006519.
Cf. A002425, A157805, A157808, A157812, A157827, A157835, A157856, A157864, A157875, A157886, A157907.
Sequence in context: A110866 A060481 A010271 * A173624 A169862 A192492
Adjacent sequences: A143071 A143072 A143073 * A143075 A143076 A143077
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KEYWORD
| sign,frac
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Nov 10 2009
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