|
|
A143760
|
|
a(n+1) = a(n)^2 + n^2, a(1) = 1.
|
|
6
|
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
Let f(n+1,k) = f(n,k)^2 + k*n*f(n,k) + n^2, f(1, k) = 1:
|
|
LINKS
|
|
|
FORMULA
|
a(n) ~ c^(2^n), where c = 1.3076706365483739101135324977730044318963776104568586126528165276768888613... . - Vaclav Kotesovec, Dec 18 2014
|
|
MATHEMATICA
|
RecurrenceTable[{a[1]==1, a[n]==a[n-1]^2+(n-1)^2}, a[n], {n, 10}] (* Harvey P. Dale, May 03 2011 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|