19135

Appears in sequences

• Numbers k which are (sum of digits of k) concatenated with (product of digits of k).at n=12A062237
• Smallest multiple of n beginning with the n-th prime.at n=42A078208
• Number of ways to label the vertices of the octahedron (or faces of the cube) with nonnegative integers summing to n, where labelings that differ only by rotation or reflection are considered the same.at n=36A097513
• Diagonal sums of correlation triangle for Catalan numbers.at n=10A115254
• The values of 'a' in a^2 + b^2 = c^2, where b - a = 17 and gcd(a, b, c) = 1.at n=8A117473
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+17)^2 = y^2.at n=13A118120
• a(n) = 7*a(n-1) - 7*a(n-2) + a(n-3) for n > 2; a(0) = 7, a(1) = 88, a(2) = 555.at n=4A155465
• Number of 2 X 2 matrices with all terms in {-n,..,0,..,n} and (sum of terms) = determinant.at n=21A281194
• Numbers k whose binary expansion is a substring of the binary expansion of binomial(k,2).at n=40A356537
• a(n) = smallest k such that li(k) - pi(k) >= n, where li(k) is the logarithmic integral and pi(x) is the number of primes <= x.at n=30A359145