259579

Appears in sequences

• Expansion of 1/(1 - 3*x^2 - x^3).at n=21A052931
• Number of connected 2-element multiantichains on a labeled n-set.at n=12A094734
• 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) = 1, s(2n+1) = 6.at n=9A094829
• a(n) = (a(n-3)*a(n-9) + a(n-1)*a(n-11))/a(n-12) with a(0) = ... = a(11) = 1.at n=31A375922