1,2

Let f(n+1,k) = f(n,k)^2 + k*n*f(n,k) + n^2, f(1, k) = 1:

f(n,0)=a(n), f(n,-1)=A143761(n), f(n,+1)=A143762(n),

f(n,-2)=A143763(n), f(n,+2)=A143764(n), f(n,-3)=A143765(n),

f(n,+3)=A143766(n).

Index entries for sequences of form a(n+1)=a(n)^2 + ... [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 11 2008]

Sequence in context: A125814 A013002 A012998 this_sequence A064605 A132039 A002668

Adjacent sequences: A143757 A143758 A143759 this_sequence A143761 A143762 A143763

nonn

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 01 2008