A143985 a(0) = 0; thereafter, a(n+1) = (a(n) + 2)^2 - n.

0, 3, 23, 622, 389372, 151612111871, 22986232466591067568123, 528366883008165274204418444362589201516015618, 279171563059764209960524428253973697688487588192684862752843397296212343984911360083984392

Offset

0,2

Links

Table of n, a(n) for n=0..8.

Mathematica

lst={}; a=0; Do[AppendTo[lst, a=a^2-n]; a=a+2, {n, 0, 9}]; lst

Crossrefs

Sequence in context: A101191 A127900 A229266 * A333739 A119669 A013391

Adjacent sequences: A143982 A143983 A143984 * A143986 A143987 A143988

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Sep 06 2008

Extensions

Edited by N. J. A. Sloane, Sep 14 2008, Jan 02 2009

Status

approved