26770

Appears in sequences

• a(0) = 2, a(1) = 3, a(n) = 4 * a(n-1) - a(n-2).at n=8A144720
• a(n) = 169*n^2 - 140*n + 29.at n=12A156639
• Number of nX4 arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.at n=4A221797
• Number of nX5 arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.at n=3A221798
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.at n=31A221800
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.at n=32A221800
• Values of x in the solutions to x^2 - 4xy + y^2 + 11 = 0, where 0 < x < y.at n=15A237250
• Numbers n such that 2*n*3^n + 1 is prime.at n=31A266694
• a(n) = 3*a(n-1) - 3*a(n-2) + 2*a(n-3) - 2*a(n-4) + a(n-5) for n >= 10, a(0) = 2, a(1) = 4, a(2) = 7, a(3) = 12, a(4) = 20, a(5) = 32, a(6) = 50, a(7) = 77, a(8) = 116, a(9) = 174.at n=22A289115
• a(n) = a(n-1) + a(n-2) + a([(n+1)/2]), where a(0) = 1, a(1) = 2, a(2) = 3.at n=18A298349
• Partial sums of A299272.at n=27A299273
• Number of degree n polynomials f(x) with coefficients 0 or 1 with the property that the thickness of x*f(x)+1 is greater than the thickness of f(x).at n=16A344036