548340

Appears in sequences

• Number of necklaces with 7 black beads and n-7 white beads.at n=34A032192
• a(n) = n*(n+1)*(n+2)*(n+3)/4.at n=37A033487
• T(n,7), array T as in A051168; a count of Lyndon words; aperiodic necklaces with 7 black beads and n-7 white beads.at n=34A051172
• Member k=5 of a family of generalized Catalan numbers.at n=6A130564
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/5)} a(5*k) * a(n-1-5*k).at n=34A386379