25431

Appears in sequences

• a(n) = Sum_{m=1..n} Sum_{k=1..m} prime(k).at n=34A014148
• (prime(n)*(prime(n+1)-1) + (prime(n)-1)*prime(n+1)) / 2.at n=35A099909
• Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime.at n=23A104972
• Least positive k such that 2^n + k is a Chen prime and 2^n + k + 2 is a brilliant number.at n=46A109364
• Central moment sequence of tr(A^6) in USp(6).at n=8A138548
• a(n) = 22*n^2 - 1.at n=33A158540
• Nodes of tree generated as follows: (1,2) is an edge, and if (x,y) is an edge, then (y, y^2 - x^2) and (y, y^2 + x^2) are edges.at n=19A228940
• Numbers k such that (43*10^k + 47)/9 is prime.at n=18A296094
• Derangements of {1,2,...,n} (n >= 2) in lexicographic order.at n=22A320588
• Number of minimal total dominating sets in the n X n rook complement graph.at n=6A347922
• Array read by antidiagonals: T(n,k) is the number of nonisomorphic multisets of derangements of an n-set with k derangements.at n=75A362759
• Number of nonisomorphic unordered pairs of derangements of an n-set.at n=9A362760