52817

Properties

Appears in sequences

• Primes of the form x^2 + (x+3)^2.at n=37A076727
• Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + (n^2 +n -1)*T(n-2, k-1), read by rows.at n=31A154233
• Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + (n^2 +n -1)*T(n-2, k-1), read by rows.at n=32A154233
• Prime factors in a divisibility sequence of the Lucas sequence v(P=3,Q=5) of the second kind.at n=22A164816
• Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,1,1,0 for x=0,1,2,3,4.at n=16A197497
• The number of tilings of a 7 X (3n) floor with 1 X 3 trominoes.at n=4A236578
• Prime numbersat n=5391