285156

Appears in sequences

• a(1)=1; at n>=2, a(n) = least square > a(n-1) such that sum a(1)+...+a(n) is a prime number.at n=25A139033
• Squares such that square-+5 are primes.at n=12A154711
• Numbers k such that k^k == 1 (mod sigma(k)).at n=22A181476
• Number of (n+2) X (6+2) 0..1 arrays with no 3 x 3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.at n=18A258892
• Primitive exponential admirable numbers: the powerful terms in A336680.at n=33A391283
• Exponential abundant numbers that are squares of squarefree numbers.at n=27A391428