A087186 Q(p)/p where p runs through the primes and Q(k) is the k-th central quadrinomial coefficient (A005190).

2, 4, 31, 304, 40044, 500522, 86094668, 1167752848, 225001039696, 652498288154820, 9451735761626880, 29731605314969017772, 6529673496702876605072, 97300805803445759460364

Offset

1,1

Links

M. F. Hasler, Table of n, a(n) for n = 1..100

Crossrefs

Cf. A005190.

Sequence in context: A188113 A259115 A051569 * A051759 A051570 A082913

Adjacent sequences: A087183 A087184 A087185 * A087187 A087188 A087189

Keyword

nonn

Author

Benoit Cloitre, Oct 19 2003

Status

approved