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A078983
Numerators of continued fraction convergents to cosh(1).
3
1, 2, 3, 17, 54, 179, 412, 591, 12823, 13414, 26237, 39651, 184841, 409333, 594174, 28929685, 2054601809, 14411142348, 16465744157, 30876886505, 294357722702, 325234609207, 944826941116, 1270061550323, 14915503994669, 16185565544992
OFFSET
0,2
LINKS
MATHEMATICA
Numerator[Convergents[Cosh[1], 30]] (* Harvey P. Dale, Feb 02 2012 *)
PROG
(PARI) a(n)=component(component(contfracpnqn(contfrac(cosh(1), n+1)), 1), 1)
CROSSREFS
Cf. A068118 (continued fraction), A073743 (decimal expansion), A078982 (denominators).
Sequence in context: A051084 A106860 A042699 * A235617 A201455 A085874
KEYWORD
frac,nonn
AUTHOR
Benoit Cloitre, Dec 20 2002
EXTENSIONS
Offset changed by Andrew Howroyd, Aug 05 2024
STATUS
approved