Q(p)/p where p runs through the primes and Q(k) is the k-th central quadrinomial coefficient (A005190).
A087186
Q(p)/p where p runs through the primes and Q(k) is the k-th central quadrinomial coefficient (A005190).
Terms
- a(0) =2a(1) =4a(2) =31a(3) =304a(4) =40044a(5) =500522a(6) =86094668a(7) =1167752848a(8) =225001039696
External references
- oeis: A087186