8237820025

Appears in sequences

• Indices of hexagonal numbers which are also heptagonal.at n=4A048901
• a(n+3) = 3*a(n+2) + 5*a(n+1) + a(n), a(0) = 0, a(1) = 1, a(2) = 3.at n=17A110526
• Number of (1,0)-steps of weight 1 at level 0 in all weighted lattice paths in L_n.at n=25A182890