22192

Appears in sequences

• a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ... + a(n-3)*a(3) for n >= 4, with initial terms 2, 0, 1, 2.at n=13A025247
• a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ... + a(n-1)*a(1) for n >= 4.at n=13A025265
• Number of nonisomorphic regular linear spaces RLIN(n).at n=14A031437
• Numbers k such that 3*2^k + 35 is prime.at n=49A059759
• Starting positions of strings of three 8's in the decimal expansion of Pi.at n=19A083637
• Expansion of (1-2x-sqrt(1-4x+4x^2-4x^3))/(2x^2).at n=11A091561
• a(n) = period of terms in quasi-periodic continued fraction expansion of 2^n*tanh(1).at n=11A094234
• a(n) = 4*(4 + 9*n^2 + 15*n).at n=24A144449
• a(n) = A061039(8*n+5).at n=18A144453
• Number of Dyck paths of semilength n with no peaks at height 0 (mod 3) and no valleys at height 2 (mod 3).at n=12A152225
• Coefficients of a recursive polynomial based on Chaitin's S expressions: a(0)=1; a(1)=x; a(2)=1; a(n)=vector(a(n-1)).reverse(a(n-1)).at n=55A176703
• Number of n X 5 binary arrays without the pattern 0 1 diagonally or antidiagonally.at n=18A188820
• Regular triangle array: number of [0-r]-covering hierarchies with thickness = e.at n=41A250485
• Expansion of (1 + 6*x + x^2 + 12*x^3 - 2*x^4)/((1 - x)^4*(1 + x)^3).at n=37A268579
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 622", based on the 5-celled von Neumann neighborhood.at n=39A269567
• Numbers which are representable as a sum of nineteen but no fewer consecutive nonnegative integers.at n=24A270303
• Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k UHU configurations, where U=(0,1), H(1,0); (n>=2, k>=0).at n=36A273896
• Number of maximal subsets of {1..n} such that every ordered pair of distinct elements has a different difference.at n=29A325879
• Number of integer partitions of n whose maximal anti-runs do not all have different maxima.at n=38A375401