59930

Appears in sequences

• a(n) = least solution k of f(k) = f(k-1) + ... + f(k-n), where f(m) = prime(m+1)-prime(m) and prime(m) denotes the m-th prime, if k exists; 0 otherwise.at n=9A066496
• a(n) = sigma_3(n) - sigma_2(n).at n=37A092349
• Number of tilings of an n X n square with rectangles with integer sides and area n.at n=22A182106
• Numbers which are the sum of two squared primes in exactly four ways (ignoring order).at n=18A226599
• Positive integers n such that (n+39)^3 - n^3 is a square.at n=2A263945
• Numbers k such that A(k+1) = A(k) + 3, where A() = A005100() are the deficient numbers.at n=18A317046
• Numbers k with Goldbach partitions (p,q) and (r,s) such that k | (p*q -1) and k | (r*s +1).at n=7A336584