2160900

Appears in sequences

• Squares of even pentagonal pyramidal numbers.at n=10A014800
• Squares which are the sum of twin prime pairs.at n=30A037072
• Perfect powers which are the sum of twin prime pairs.at n=33A119767
• Totally multiplicative sequence with a(p) = 7*(p+3) for prime p.at n=35A167326
• Number of (n+2) X 3 binary arrays avoiding patterns 001 and 011 in rows and columns.at n=23A202093
• Number of 5Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=11A208144
• Squares equal to the difference between two successive primes of the form n^2+1.at n=29A216330
• Number of (n+1)X(2+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.at n=24A250426
• Squares that are the concatenation of two Pythagorean integers a and b with a^2 + b^2 = c^2 (a and b are without any left-hand zeros).at n=7A257650
• Magic sums of 3 X 3 semimagic squares of squares whose rows, columns, and at least one of the two main diagonals sum to the same number.at n=12A271021
• Perfect powers k^m, m > 1, omega(k) > 1, such that A053669(k) > A006530(k) that are not also products of primorials, where omega = A001221.at n=27A380452
• Powers k^m, m > 1, where k is neither squarefree nor squareful, and has a primorial kernel but is not a product of primorials.at n=23A389682