186733

Properties

Appears in sequences

• Number of (s(0), s(1), ..., s(2n+1)) such that 0 < s(i) < 9 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n+1, s(0) = 3, s(2n+1) = 6.at n=9A094834
• Prime numbers of the form (x^3)/2+(3x^2)/2+3x+3.at n=16A127874
• 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), (0, 1, -1), (1, 0, 1)}.at n=12A148339
• Expansion of (1 - x^2)/(1 - 3*x^2 - x^3).at n=21A188048
• a(n) = 3*a(n-1) + 24*a(n-2) + a(n-3), with a(0)=a(1)=1, and a(2)=19.at n=7A217052
• Prime numbersat n=16898