149501

Appears in sequences

• Related to population of numbers of form x^2 + y^2.at n=19A000693
• a(n) = a(n-1)+a(n-2)-a(n-3)+a(n-5), n>7.at n=35A107287
• 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, 1), (-1, 1, 1), (0, 0, -1), (1, 0, 1)}.at n=11A148708
• Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any north, southwest or northwest neighbors modulo 6 and the upper left element equal to 0.at n=11A267204
• Number of Dyck paths of semilength n and height exactly 6.at n=7A289419