227529

Appears in sequences

• Squares of odd pentagonal numbers.at n=9A014769
• Remainder when n^n is divided by n!.at n=9A063709
• Squares of pentagonal numbers: a(n) = (1/4)*n^2*(3*n-1)^2.at n=18A100255
• Odd squares not in A113659.at n=17A103962
• a(n) = (14*n+1)^2.at n=34A134934
• Squares that become a prime number when prefixed with a 5.at n=12A167720
• E.g.f. satisfies: A(x) = 1/(cos(x*A(x)) - sin(x*A(x))).at n=6A201923
• Number of (n+2)X2 0..1 arrays with all rows having a nonnegative second derivative, and all and columns having a positive second derivative in a quadratic least squares fit, with one and two element arrays taken as having a zero second derivative.at n=7A223646
• Powers k^m, m > 1, odd k that are neither squarefree nor squareful.at n=31A392423