21350

Appears in sequences

• Fourth right hand column of triangle A165674.at n=15A165676
• Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any diagonal or antidiagonal neighbor.at n=3A182367
• Records in A224796.at n=34A224719
• Maximum value of (1/2)*Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} Sum_{l=1..n} gcd(b(i,j),b(k,l)) * ((i-k)^2+(j-l)^2) for an n X n matrix b filled with the integers 1 to n^2.at n=5A261177
• Anagraprod Integers. Integers N that reproduce their multiset of digits when all the products of two successive digits of N are done (and considered together).at n=57A296451
• Number of ways to pay n dollars using Canadian coins, that is: nickels (5 cents), dimes (10 cents), quarters (25 cents), loonies (100 cents or $1 coins) and toonies ($2 coins).at n=11A307849
• Total surface area of all rectangular prisms with dimensions p X q X q, where p and q are prime, n = p+q and p<q.at n=47A335188
• Expansion of g.f. A(x) satisfying 1/5 = Sum_{n=-oo..+oo} x^n * (A(x) - x^n)^(n-1), with a(0) = 6.at n=3A363315