A211488 a(n) = Fibonacci(n^2) - Fibonacci(n).

0, 2, 32, 984, 75020, 14930344, 7778742036, 10610209857702, 37889062373143872, 354224848179261915020, 8670007398507948658051832, 555565404224292694404015791664, 93202207781383214849429075266681736, 40934782466626840596168752972961528245770

Offset: 1

Author

Vincenzo Librandi, Jul 09 2012

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..69

Crossrefs

Cf. A000045, A054783.

Programs

Magma

[Fibonacci(n^2) - Fibonacci(n): n in [1..15]];

Mathematica

Table[Fibonacci[n^2]-Fibonacci[n],{n,20}]

Formula

a(n) = A054783(n) - A000045(n). - Michel Marcus, May 02 2025