60172

Appears in sequences

• Expansion of 1/((1+x)*(1-x)^10).at n=10A001781
• Numbers k such that 209*2^k-1 is prime.at n=12A050856
• Main diagonal of the array in which first column and row are filled alternatively with 1's or 0's and then T(i,j) = T(i-1,j) + T(i,j-1).at n=10A072547
• Number of symmetric Dyck paths of semilength n and having no hills (i.e., no peaks at level 1).at n=19A109078
• Number of 5 X n 0..1 arrays with rows unimodal and columns nondecreasing.at n=8A225012