28488

Appears in sequences

• Triangle read by rows, based on a simple Jacobsthal number recursion rule.at n=41A114163
• Numbers k which can be split into two numbers x and y such that x^3 + y^2 is a multiple of k.at n=37A162451
• Number of 3-step one or two space at a time rook's tours on an n X n board summed over all starting positions.at n=23A187288
• Number of nX4 0..4 arrays with each element equal to the number its horizontal and vertical zero neighbors.at n=10A197050
• p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - S^3 - S^6.at n=19A291407
• Number of nX5 0..1 arrays with every element unequal to 0, 1, 2 or 3 king-move adjacent elements, with upper left element zero.at n=13A303724
• Number of binary matrices with 3 distinct columns and any number of nonzero rows with n ones in every column and rows in nonincreasing lexicographic order.at n=23A331390
• Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(0,k) = 1 and T(n,k) = (1/n) * Sum_{j=1..n} 3^j * binomial(n,j) * binomial(k*n,j-1) for n > 0.at n=49A336575