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A096456 Numerators of convergents to Pi/2. 2
1, 2, 3, 11, 344, 355, 51819, 52174, 260515, 573204, 4846147, 5419351, 37362253, 42781604, 122925461, 411557987, 534483448, 2549491779, 3083975227, 17969367914, 21053343141, 881156436695, 902209779836, 2685575996367 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

I. Rosenholtz, Tangent sequences, world records, ..., Math. Mag., 72 (No. 5, 1999), 367-376.

EXAMPLE

1, 2, 3/2, 11/7, 344/219, 355/226, ...

MATHEMATICA

Table[Numerator[FromContinuedFraction[ContinuedFraction[Pi/2, n]]], {n, 1, 25}] (* Stefan Steinerberger, Mar 18 2006 *)

CROSSREFS

Cf. A096463, A053300.

Sequence in context: A318130 A109809 A211349 * A262201 A072928 A140970

Adjacent sequences:  A096453 A096454 A096455 * A096457 A096458 A096459

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane, Aug 16 2004

EXTENSIONS

More terms from Stefan Steinerberger, Mar 18 2006

STATUS

approved

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Last modified March 30 21:56 EDT 2020. Contains 333132 sequences. (Running on oeis4.)