117187

Appears in sequences

• Sum_{T(i,j)}, 0<=j<=i, 0<=i<=n, where T is the array in A026386.at n=13A026396
• a(n) = (3*5^n - 1)/2.at n=7A057651
• a(n) = Sum_{k=0..n} C(floor((n+1)/2),floor((k+1)/2))*2^k.at n=14A097162
• Triangular array: T(n,k) = T(n,n) = 1, T(n,k) = 5*T(n-1, k-1) + 2*T(n-1, k), read by rows.at n=43A119727
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (-1, 0, 1), (1, 0, 0), (1, 1, -1)}.at n=12A148131
• Moore lower bound on the order of a (6,g)-cage.at n=12A198306
• a(n) = 5*a(n-2) + 2, a(0) = 1, a(1) = 2.at n=14A238366
• Record terms of A349664.at n=34A349665