361201

Appears in sequences

• a(n) = prime^2 and digits of prime appear in a(n).at n=14A030081
• Smallest nontrivial extension of n-th square which is a square not ending 00.at n=18A030688
• Powers of a prime lucky number (A031157) but excluding lucky numbers (A000959).at n=33A057609
• a(n) = n^4 - 2*n^3 + 3*n^2 - 2*n + 1, the Alexander polynomial for reef and granny knots.at n=25A058031
• Smallest square that contains the digits of n in its exact middle.at n=12A062689
• Squares of the form prime(k)*prime(k+1) + 2*prime(k+1).at n=26A108604
• A symmetrical triangular sequence:t(n,m)=(n!^2/(m!(n - m)!))*Eulerian[n + 1, m] - (n!^2/(m!(n - m)!)) + 1.at n=17A174791
• A symmetrical triangular sequence:t(n,m)=(n!^2/(m!(n - m)!))*Eulerian[n + 1, m] - (n!^2/(m!(n - m)!)) + 1.at n=18A174791
• a(n+1) is next smallest square not divisible by 10 beginning with a(n), initial term is 3.at n=3A249894
• Squares representable as k*m + k + m, where k >= m > 1 are squares.at n=32A256074
• Numbers k such that concat(k, sigma(k)) and concat(sigma(k), k) are both prime.at n=8A284642