85969
domain: N
Appears in sequences
- a(n) = a(n-1) + a(n-2) + 2 where a(0) = a(1) = 1.at n=22A111314
- Row sums of A131325.at n=22A131326
- 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, 0), (-1, 1, 1), (1, 0, 1), (1, 1, -1), (1, 1, 1)}.at n=8A150980
- Sequence a(n) = 3*A002559(n) - 2 determining the principal reduced indefinite binary quadratic form [1, a(n), -a(n)] for Markoff triples.at n=23A324250