55807

Properties

Appears in sequences

• a(n) = 3*a(n-1) + a(n-2), with a(1)=1 and a(2)=4.at n=9A003688
• Primes p such that the differences between the 5 consecutive primes starting with p are (6,4,2,4).at n=14A078961
• A089450 indexed by A000040.at n=23A089525
• a(n) = floor(sqrt(a(n-1)^2 + a(n-2)^2)), a(1)=10, a(2)=30.at n=33A104863
• Fixed-j dispersion for Q = 13: array D(g,h) (g, h >= 1), read by ascending antidiagonals.at n=32A120862
• x-values in the solution to 13*x^2 - 12 = y^2.at n=9A199404
• List of quadruples (r,s,t,u): the matrix M = [[4,12,9][2,5,3][1,2,1]] is raised to successive powers, then (r,s,t,u) are the square roots of M[3,1], M[3,3], M[1,1], M[1,3] respectively.at n=41A249579
• List of quadruples (r,s,t,u): the matrix M = [[4,12,9][2,5,3][1,2,1]] is raised to successive negative powers, then (r,s,t,u) are the square roots of M[1,3], M[1,1], M[3,3], M[3,1] respectively.at n=37A249580
• Intersection of A013917 and A071150.at n=24A255017
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 or 0111.at n=28A259427
• Smallest primes of 3 X 3 semimagic squares formed from consecutive primes.at n=4A265139
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 483", based on the 5-celled von Neumann neighborhood.at n=15A288591
• If a(n-1) is not a prime, then a(n) = 2*a(n-1) + S; otherwise set S = -S and a(n) = prime(n) + S; start with a(1) = S = 1.at n=36A373805
• Primes in A373805 in order of their occurrence.at n=10A373806
• If a(n-1) is not a prime, then a(n) = 2*a(n-1) + S; otherwise set S = -S and a(n) = prime(n) + S; start with a(1) = 2, S = -1.at n=36A373808
• Primes p such that p + 6, p + 10, p + 12, p + 16 and p + 22 are also primes.at n=6A383396
• Primes having only {0, 5, 7, 8} as digits.at n=33A386079
• Prime numbersat n=5662