A092838 Numerators in the series for sec(x) that are primes.

5, 61, 277, 23489580527043108252017828576198947741, 5516994249383296071214195242422482492286460673697

Offset

1,1

Links

Table of n, a(n) for n=1..5.

Swee Hong Chan and Igor Pak, Computational complexity of counting coincidences, arXiv:2308.10214 [math.CO], 2023. See p. 16.

Eric Weisstein's World of Mathematics, Secant

Crossrefs

Cf. A092839.

Sequence in context: A087871 A242194 A046976 * A196296 A196214 A196681

Adjacent sequences: A092835 A092836 A092837 * A092839 A092840 A092841

Keyword

nonn

Author

Eric W. Weisstein, Mar 07 2004

Status

approved