6338509

Appears in sequences

• Fibonacci sequence beginning 1, 7.at n=30A022097
• a(n) = 3*a(n-1) - a(n-2) with a(0) = 1, a(1) = 8.at n=15A055273
• Expansion of g.f. (3-x)*(1+3*x+x^2)/((1-x-x^2)*(1+x-x^2)).at n=29A099256
• Number of nX3 0..1 arrays with every element equal to 0, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=34A298777