A079038 - OEIS

A079038

Fractional part of sinh(n) decreases monotonically to zero.

1, 3, 45, 75, 135, 259, 863, 1786, 2483, 2538, 5731, 16095, 36692, 94720

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

MATHEMATICA

$MaxExtraPrecision = Infinity; t = 1; Do[s = FractionalPart[Sinh[n]]; If[s < t, Print[n]; t = s; ], {n, 1, 10000}]; (* Vaclav Kotesovec, Apr 06 2020 *)

PROG

(PARI) lista(nn) = {my(b=2, r=1); print1(1); for(n=1, nn, until(frac(sinh(b))<r, default(realprecision, b++)); print1(", ", b); r=frac(sinh(b))); } \\ Modified by Jinyuan Wang, Apr 04 2020

CROSSREFS

Cf. A046947 (for abs(sin(n))).

Sequence in context: A178337 A161589 A360966 * A101790 A124494 A075320

Adjacent sequences: A079035 A079036 A079037 * A079039 A079040 A079041

KEYWORD

nonn,more

AUTHOR

Benoit Cloitre, Feb 01 2003

EXTENSIONS

a(8)-a(12) from Jinyuan Wang, Apr 03 2020

a(13) from Vaclav Kotesovec, Apr 06 2020

STATUS

approved