OFFSET
1,2
COMMENTS
Number of functions from P to Q, where P is the set of primes <= n and Q is the set of primes q such that n <= q <= 2n-1.
MATHEMATICA
Join[{0}, Table[(PrimePi[2 n - 1] - PrimePi[n - 1])^PrimePi[n], {n, 2, 30}]]
CROSSREFS
KEYWORD
nonn
AUTHOR
Wesley Ivan Hurt, May 12 2022
STATUS
approved