96572domain: NAppears in sequences1-sequence of reduction of hexagonal numbers sequence by x^2 -> x+1.at n=12A192144Binomial self-convolution of sequence A209305.at n=6A209307a(n) = 2*a(n-1) + 2*a(n-2) + 2*a(n-3) - a(n-4) with a(0)=0, a(1)=1, a(2)=2, a(3)=7.at n=12A389120