99891

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 17.at n=19A031695
• Numbers k such that k and k^2 use only the digits 1, 2, 7, 8 and 9.at n=19A137018
• 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, 0, 1), (0, 1, -1), (1, 0, -1), (1, 1, 0)}.at n=10A148949
• A sum over partitions (q=10), see first comment.at n=5A221579
• Number of length n primitive (=aperiodic or period n) 10-ary words which are earlier in lexicographic order than any other word derived by cyclic shifts of the alphabet.at n=5A320075