22370

Appears in sequences

• 2nd power of rooted tree enumerator; number of linear forests of 2 rooted trees.at n=11A000106
• Nearest integer to log(n^n)^(1 + log(1 + log(1 + n))).at n=21A062452
• Number of twin Pythagorean triples with hypotenuse less than 10^n.at n=8A101903
• a(n) = 2809*n^2 - 1000*n + 89.at n=2A157760
• Numbers k such that 5*10^k + 23 is prime.at n=17A295393
• Harary index of the n X n bishop graph.at n=19A296197
• a(n) = Sum_{k=1..n} phi(gcd(k, n))^(n/gcd(k, n)).at n=35A342541