A171754 Hyperbolic sine of the prime numbers, rounded to the nearest integer.

4, 10, 74, 548, 29937, 221207, 12077476, 89241150, 4872401723, 1965667148572, 14524424832624, 5859571186401306, 319921746765027475, 2363919734114673281, 129065644309503369812, 52068797165145438985917, 21006052018952571274782967, 155214896785095995435367107

Offset

1,1

Links

Table of n, a(n) for n=1..18.

Formula

a(n) = round(sinh(A000040(n))).

Example

For n=1: A000040(1) = 2, sinh(2) = 3.62686..., round(3.62686...) = 4.

Prog

(MATLAB) digits(50); clear phi; PP=primes(100); for i=1:length(PP); phi(i, :)=vpa(['round(sinh(' num2str(PP(i)) '))']); end; disp(phi)

Crossrefs

Sequence in context: A207159 A152397 A239502 * A215872 A371021 A059919

Adjacent sequences: A171751 A171752 A171753 * A171755 A171756 A171757

Keyword

nonn

Author

Joost de Winter, Dec 17 2009

Status

approved