183808

Appears in sequences

• Sequence arising from the factorization of F(n)= A091914(n-1) and L(n)= A127262. F(0)=0, F(1)=1, F(n)=2*F(n-1)+12*F(n-2), L(0)=2, L(1)=2, L(n)=2*L(n-1)+12*L(n-2).at n=23A127609
• Maximum number of tatami tilings of any m X m square region with exactly n horizontal dimers and m monomers.at n=39A192096
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 446", based on the 5-celled von Neumann neighborhood.at n=17A288339
• a(n) = A341886(n)/2; numbers k such that A307437(k) is even.at n=33A341887
• G.f. satisfies A(x) = exp( Sum_{k>=1} A(x^k) * (4*x)^k/k ).at n=6A363440
• a(n) = phi(5^n+1), where phi is Euler's totient function (A000010).at n=8A366618