268178

Appears in sequences

• Number of unlabeled rooted 2,3 cacti (triangular cacti with bridges).at n=12A091486
• Number of (2+1)X(n+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..n+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..2+1} nondecreasing.at n=18A233367
• Numbers n such that 7*8^n + 1 is prime.at n=11A269544