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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..12.

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

Adjacent sequences:  A067743 A067744 A067745 * A067747 A067748 A067749

KEYWORD

easy,frac,nonn

AUTHOR

Marc LeBrun, Jan 29 2002

EXTENSIONS

a(12) from Vincenzo Librandi, Feb 16 2015

STATUS

approved

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Last modified November 25 19:43 EST 2020. Contains 338625 sequences. (Running on oeis4.)