43627

Properties

Appears in sequences

• Triangle, read by rows, where the k-th column equals the k-th self-composition of column 1 (A120567) for k>=0, such that row sums equal column 1.at n=57A120568
• Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10.at n=6A154081
• Least odd prime p such that p*2^(2^n)+1 is prime.at n=13A187419
• Number of integer partitions of n with all distinct lengths of maximal gapless runs (decreasing by 0 or 1).at n=45A384884
• Prime numbersat n=4546