A030278 COMPOSE primes with primes.

4, 18, 86, 393, 1790, 7918, 34047, 142442, 582768, 2344913, 9330350, 36842164, 144611963, 564509442, 2191142528, 8453688007, 32411106626, 123493645782, 467831766283, 1763390759650, 6619106543024, 24762942068363, 92393401202050, 343951336690542

Offset

1,1

Links

Table of n, a(n) for n=1..24.

N. J. A. Sloane, Transforms

Formula

G.f.: Sum_{j>=1} prime(j)*(Sum_{k>=1} prime(k)*x^k)^j. - Ilya Gutkovskiy, Apr 21 2019

Crossrefs

Cf. A000040.

Sequence in context: A247637 A055834 A079567 * A318217 A341248 A151252

Adjacent sequences: A030275 A030276 A030277 * A030279 A030280 A030281

Keyword

nonn

Author

Christian G. Bower

Extensions

Corrected and extended by N. J. A. Sloane, Oct 29 2006

Status

approved