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A114317
a(n+1) = a(n)^2 + 2*n.
0
1, 3, 13, 175, 30633, 938380699, 880558336255728613, 775382983549456819927133059506903783, 601218771178057225431491345601197053905427210323124545159875839219711105
OFFSET
1,2
FORMULA
a(n) = a(n-1)^2 + 2*(n-1).
PROG
(PARI) a(n) = if (n==1, 1, a(n-1)^2 + 2*(n-1)) \\ Michel Marcus, Jun 29 2013
CROSSREFS
Sequence in context: A239979 A336204 A261361 * A168320 A323134 A368499
KEYWORD
nonn
AUTHOR
Rod Edwards (edwards(AT)math.uvic.ca), Feb 05 2006
STATUS
approved