55582

Appears in sequences

• 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), (0, 1, -1), (0, 1, 0), (1, -1, 1)}.at n=10A148432
• Solution of the complementary equation a(n) = 2*a(n-1) - a(n-3) + b(n-2), where a(0) = 1, a(1) = 3, a(2) = 5, b(0) = 2, b(1) = 4, b(2) = 6, and (a(n)) and (b(n)) are increasing complementary sequences.at n=18A295617
• Number of cyclic permutations of length n avoiding the pattern 123.at n=13A309504
• Number of nonempty subsets of {1..n} whose elements have an odd average.at n=19A357355
• Number of nonempty subsets of {1..n} whose elements have an even average.at n=19A357356