24100

Appears in sequences

• a(n) = n * [1 + sum(k=1 to n-1) prime(k)].at n=25A083719
• a(n) = ceiling(Sum_{i=1..n-1} a(i)/4) for n >= 2 starting with a(1) = 1.at n=48A120160
• Elias omega coded prime numbers represented in decimal.at n=32A147764
• Number of regions in a complete but borderless regular polygon.at n=24A191101
• Generating primitive Pythagorean triangles by using (n, n+1) gives perimeters for each n. This sequence lists the sum of these perimeters for each n triangles.at n=24A193068
• Numbers n such that the decimal number concat(6,n) is a square.at n=34A273361
• Number of regions in a regular drawing of a complete bipartite graph where the vertex positions on each part equal the Farey series of order n.at n=6A359692