699250

Appears in sequences

• Powers of fourth root of 17 rounded to nearest integer.at n=19A018094
• Powers of fourth root of 17 rounded up.at n=19A018095
• A simple grammar: cycles of pairs of sequences.at n=24A052823
• Triangle read by rows: T(n,k) is the number of non-isomorphic colorings of a toroidal n X k grid using exactly two colors under translational symmetry, 1 <= k <= n.at n=30A294684
• a(n) = number of subsets S of {1,2,...,n} having more than 1 element such that (difference between least two elements of S) = difference between greatest two elements of S.at n=21A357282