211600

Appears in sequences

• a(n) = (12*n + 4)^2.at n=38A017570
• Numbers k such that A094471(k) is prime.at n=36A096847
• Powerful(1) numbers (A001694) whose digit reversal is a pentagonal number (A000326).at n=16A115695
• Squares for which both the sum of the digits and the product of the digits is a triangular number.at n=28A118490
• Column 3 of triangle A123610.at n=22A123613
• Numbers of the form p^4*q^2*r^2 where p, q, and r are distinct primes.at n=28A179746
• Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=7A207366
• Squares that remain squares if you decrease them by a repunit with the same number of digits.at n=8A273229
• The first of three consecutive squares the sum of which is equal to the sum of three consecutive primes.at n=18A298222
• Array read by antidiagonals: T(n,k) is the number of nonisomorphic multisets of derangements of an n-set with k derangements.at n=62A362759
• Number of nonisomorphic unordered triples of derangements of an n-set.at n=7A362761
• Squares whose sum of prime factors (with multiplicity) is also a perfect square.at n=28A392304