OFFSET
0,2
LINKS
Robert Israel, Table of n, a(n) for n = 0..290
Robert Israel, Table of n, a(n) for n = 1..290
FORMULA
a(n) = Product_{i=1..n} (prime(i)+prime(n+1)). - Robert Israel, Jan 28 2025
MAPLE
f:= proc(n) local i; mul(ithprime(i)+ithprime(n+1), i=1..n) end proc:
map(f, [$1..30]); # Robert Israel, Jan 28 2025
MATHEMATICA
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 03 2012
EXTENSIONS
a(0) = 1 inserted by Robert Israel, Jan 29 2025
STATUS
approved