112501

Properties

Appears in sequences

• Indices of records in A109631.at n=38A109640
• Sum of all terms on the two principal diagonals of a 2n+1 X 2n+1 square spiral.at n=27A114254
• Primes of the form 5k^2 + 1.at n=9A137530
• Emirps that become their own reversals when rotated through 180 degrees (including on calculator display).at n=25A209620
• a(n) = Sum_{k=0..n} binomial(n,k) * binomial(3*n+2*k,k).at n=5A386542
• Prime numbersat n=10663