88938

Appears in sequences

• Number of reversible strings with n beads of 3 colors.at n=11A032120
• Column 12 of an array illustrated in A089584 and related to A034261.at n=4A110553
• Triangle P, read by rows, that satisfies [P^3](n,k) = P(n+1,k+1) for n>=k>=0, also [P^(3*m)](n,k) = [P^m](n+1,k+1) for all m, where [P^m](n,k) denotes the element at row n, column k, of the matrix power m of P, with P(k,k)=1 and P(k+1,1)=P(k+1,0) for k>=0.at n=33A111840
• a(2*n+2) = 10*a(2*n+1), a(2*n+1) = 10*a(2*n) - 9^n*A000108(n), a(0) = 1.at n=5A156577
• a(n) = n^6*(n^5 + 1)/2.at n=3A168627
• The first of three triangles counting 3-colored alternating permutations by their last value.at n=30A202692
• Numbers k such that 6*10^k - 91 is prime.at n=26A294945