64067

Properties

Appears in sequences

• a(n) = Sum_{k>=1} floor(tau^(n-k)) where tau is A001622.at n=21A020956
• Convolution of Lucas numbers and positive integers repeated (A000032 and A008619).at n=20A213046
• Fourth prime p such that (p+n)^2+n is prime but (p+j)^2+j is not prime for all 0<j<n.at n=39A238676
• Number of ways to place 3 points on an n X n X n triangular grid so that no pair of them has distance sqrt(3).at n=10A244501
• Primes having only {0, 4, 6, 7} as digits.at n=26A386072
• Prime numbersat n=6420