27727

Appears in sequences

• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+233)^2 = y^2.at n=9A129625
• Number of n-bead necklaces labeled with numbers -2..2 allowing reversal, with sum zero and three times sum of squares <= n*(2)*(2+1).at n=9A208799
• T(n,k) = number of n-bead necklaces labeled with numbers -k..k allowing reversal, with sum zero and three times sum of squares <= n*k*(k+1).at n=64A208805
• Smallest k such that (10^n+k, 10^n+k+2) and (10^(n+1)+k, 10^(n+1)+k+2) are two pairs of twin primes.at n=13A224905
• Numbers with digits 2 and 7 only.at n=43A284921
• Starts of runs of 4 consecutive Gray-code Niven numbers (A344341).at n=28A344344