56785

Appears in sequences

• Ordered hypotenuses of primitive Pythagorean triangles having legs that add up to a square.at n=33A088319
• Octanacci numbers.at n=21A123526
• G.f.: exp( Sum_{n>=1} A055457(n) * 5^A055457(n) * x^n/n ) where 5^A055457(n) exactly divides 5*n.at n=18A195761
• Number of length n+2 0..1 arrays with at most two downsteps in every n consecutive neighbor pairs.at n=21A256817
• Number of (n+3)X(3+3) 0..1 arrays with each row and column divisible by 13, read as a binary number with top and left being the most significant bits.at n=8A262484
• Numbers k such that 7*10^k - 23 is prime.at n=31A272271
• Approximation of the 7-adic integer exp(-7) up to 7^n.at n=6A309905
• Centered square numbers which are sphenic numbers.at n=23A380882