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A061454 a(n) = denominator of the continued fraction [1; 2^2, 3^3, ..., n^n]. 2
1, 4, 109, 27908, 87212609, 4068991513412, 3350989478017071325, 56220274286423726298444612, 21780886155760409454735049537526593, 217808861557604094603570769661689656298444612 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..37

FORMULA

a(n) = n^n * a(n-1) + a(n-2) for n > 2. - Seiichi Manyama, Jun 05 2018

EXAMPLE

a(1) = 1, a(2) = 4 = denominator of 1 + 1/4 = 5/4.

CROSSREFS

Numerators are sequence A061453.

Sequence in context: A297916 A298541 A015100 * A201450 A286424 A181272

Adjacent sequences:  A061451 A061452 A061453 * A061455 A061456 A061457

KEYWORD

nonn,easy,frac

AUTHOR

Amarnath Murthy, May 03 2001

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), May 15 2001

STATUS

approved

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Last modified January 23 04:16 EST 2020. Contains 331168 sequences. (Running on oeis4.)