1382976

Appears in sequences

• Squares of even triangular numbers.at n=23A014738
• Squares that are a difference between 2 positive cubes.at n=19A038596
• Solutions to mod(sigma(x), 6) = 5.at n=28A074384
• Smallest x such that sigma(x) mod 210 = n.at n=41A097014
• Triangle read by rows: T(n,m) = (binomial(n - 1, m - 1)*binomial(n, m - 1)/m)^2.at n=39A174158
• Triangle read by rows: T(n,m) = (binomial(n - 1, m - 1)*binomial(n, m - 1)/m)^2.at n=41A174158
• Numbers divisible by at least six of their digits, different and >1.at n=37A187534
• Number of (n+2)X5 binary arrays avoiding patterns 001 and 011 in rows and columns.at n=7A202095
• Vandermonde sequence using x^2 + xy + y^2 applied to (0,1,1,2,2,...,floor(n/2)).at n=4A203748
• Squares which have one or more occurrences of exactly seven different digits.at n=12A235722
• Number of (n+1)X(4+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.at n=8A250428
• 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=10A271021
• Numbers k such that sigma(k) - 3k is prime.at n=15A306492
• a(n) = Product_{k=0..n} (3^k + 5^(n-k)).at n=3A369678
• Squares in A378769.at n=27A378984