-2183

Appears in sequences

• a(n)=1+(1/12)(n*(n+1)*(n+3)*(4-n)).at n=13A080260
• a(n) = -n^2 + 9*n + 53.at n=52A126665
• Triangle, T(n, k, q) = e(n, k, q), where e(n, k, q) = ((1 - (-q)^k)/(1+q))*e(n-1, k, q) + (-q)^(k-1)*e(n-1, k-1, q), e(n, 0, q) = e(n, n, q) = 1, and q = 2, read by rows.at n=38A156535
• E.g.f.: A(x) = exp( x/A(-x*A(x)) ).at n=6A213108
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 161", based on the 5-celled von Neumann neighborhood.at n=35A270453
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A213108.at n=34A384801