a(n) = (round(c^prime(n)) - 1)/prime(n), where c is the pentanacci constant (A103814).

A239564

a(n) = (round(c^prime(n)) - 1)/prime(n), where c is the pentanacci constant (A103814).

Terms

    a(0) =154a(1) =504a(2) =5758a(3) =19912a(4) =245714a(5) =11251030a(6) =40679232a(7) =1967728552a(8) =26525975822a(9) =97753187576

External references