323761

Appears in sequences

• a(1) = 3; for n>1, a(n) is the smallest square > a(n-1) obtained by inserting digits into a(n-1).at n=4A068177
• Squares of lesser of twin primes.at n=25A108570
• Numbers k of the form q^2, q = prime, such that k-2 is a prime.at n=36A146981
• Number of nX4 array permutations with each element not moved or moved diagonally or antidiagonally by one.at n=5A189275
• Number of nX6 array permutations with each element not moved or moved diagonally or antidiagonally by one.at n=3A189277
• T(n,k) = number of n X k array permutations with each element not moved or moved diagonally or antidiagonally by one.at n=39A189280
• T(n,k) = number of n X k array permutations with each element not moved or moved diagonally or antidiagonally by one.at n=41A189280
• Prime powers p^k with even exponents k > 0 such that (1 + p^k)/2 is prime.at n=28A192618
• Lucky numbers that are prime powers.at n=40A225322
• Prime powers (A025475) representable as (p+q)/2, where p and q are distinct prime powers.at n=33A225388
• Perfect powers m^k such that m, k and m+k are primes.at n=29A258400
• Square numbers in A070552.at n=21A263951
• Number of (n+1) X (1+1) arrays of permutations of 0..n*2+1 with each element having directed index change 2,-1 1,0 2,1 0,-1 -2,-2 or -1,0.at n=16A264484