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A067746
Denominator of ((3 * n - 2)/(n^(2 * n - 1) * (2 * n - 1) * 4^(n - 1))).
1
1, 24, 19440, 3670016, 4500000000, 255409127424, 5159146026151936, 4323455642275676160, 18580248257778920521728, 12451840000000000000000000, 162954214196559334212035936256, 319540863203713904815925769535488
OFFSET
1,2
LINKS
D. S. Mitrinovic and Slavko Simic, Special Functions from Long Ago: 5626, Amer. Math. Monthly 109, (2002), p. 83-84.
PROG
(PARI) vector(20, n, denominator(((3*n - 2)/(n^(2*n - 1)*(2*n - 1)*4^(n - 1))))) \\ Michel Marcus, Feb 16 2015
(Magma) [Denominator((3*n-2)/((n^(2*n-1)*(2*n-1)*4^(n-1)))): n in [1..15]]; // Vincenzo Librandi, Feb 16 2015
CROSSREFS
Cf. A067745.
Sequence in context: A279299 A145496 A279655 * A111404 A167066 A166338
KEYWORD
easy,frac,nonn
AUTHOR
Marc LeBrun, Jan 29 2002
EXTENSIONS
a(12) from Vincenzo Librandi, Feb 16 2015
STATUS
approved