1,2

a(3) should be 16, not 8.

Previous name was: Number of spanning trees in the wheel graph G consisting of an n-cycle with a central vertex connected to each vertex of the cycle.

Table of n, a(n) for n=1..29.

a(n) = Sum_{i=1..n-1} ( Fibonacci(2n-2i)*i^2 ) + n^2.

Sequence in context: A126750 A256401 A109292 * A192379 A117474 A294665

Adjacent sequences: A275568 A275569 A275570 * A275572 A275573 A275574

dead

He Wenyang, Aug 02 2016

approved