30458
domain: N
Appears in sequences
- Position of sqrt(n) in the mapping N2QuQR2 given in A065937.at n=6A065939
- Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 3,2 4,1 polyhexes in any orientation on a planar nXnXn triangular grid.at n=6A155301
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 401", based on the 5-celled von Neumann neighborhood.at n=35A271805
- a(n) = Sum_{k=0..n} 2^k * 3^(n-k) * binomial(4*n+1,k) * binomial(4*n-k,n-k).at n=3A385671