A208473 Central coefficients of triangle A185384.

1, 6, 78, 1100, 16310, 248724, 3863244, 60784152, 965571750, 15451970820, 248731275364, 4022998982184, 65326505787452, 1064336612493000, 17390322931354200, 284844148339840560, 4675649304522319110, 76895312195988615780

Offset: 0

Author

Emanuele Munarini, Feb 29 2012

Keywords

• nonn
• easy

Programs

Mathematica

Table[Binomial[2n,n]Fibonacci[3n+1],{n,0,100}]

Maxima

makelist(binomial(2*n,n)*fib(3*n+1),n,0,17);

Formula

a(n) = binomial(2n,n)*F(3n+1), where F(n) are the Fibonacci numbers (A000045).