A143985 a(0) = 0; thereafter, a(n) = (a(n - 1) + 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 A396892 A119669

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

Definition corrected by Georg Fischer, May 18 2026

Status

approved