26279

Appears in sequences

• Numbers n such that 25*2^n-1 is prime.at n=30A050538
• Number of dissimilar forests on n nodes.at n=11A121797
• Numbers k such that k^k == -1 (mod phi(k)).at n=7A177012
• Number of nondecreasing arrangements of 8 numbers x(i) in -(n+6)..(n+6) with the sum of sign(x(i))*2^|x(i)| zero.at n=11A187992
• Number of n X 3 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=32A224141