61493

Properties

Appears in sequences

• Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives A(A000099(n)).at n=39A000323
• Number of partitions of n that do not contain 4 as a part.at n=47A027338
• Numerators of continued fraction convergents to sqrt(507).at n=7A041968
• Primes of the form n^2 - 11.at n=31A091272
• First differences of the partition numbers of the primes.at n=14A182739
• 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=30A238676
• Number of length n+3 0..4 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=41A248533
• Intersection of A013917 and A071150.at n=27A255017
• Lexicographically largest strictly increasing sequence of primes for which the continued square root map produces Feigenbaum's constant delta = 4.6692016... (A006890).at n=33A257809
• Primes p such that prime(p)^2 - 2 = prime(q) for some prime q.at n=49A261354
• Prime numbersat n=6186