67024

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 47 ones.at n=12A031815
• 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, 1, 1), (1, 0, 1), (1, 1, -1)}.at n=9A149420
• Inverse binomial transform of A048775 (assuming offset zero in both sequences).at n=10A163765
• a(n) is the number of binary words containing n 1's and at most n 0's that do not contain the substring 101.at n=11A225034
• Start with the triangle with 4 markings of the Shield tiling and recursively apply the substitution rule. a(n) is the number of triangles with 4 markings after n iterations.at n=10A298682