41349

Appears in sequences

• Numbers k such that sigma(k) = sigma(k+5).at n=15A015865
• Triangle read by rows: T(n,k) is number of Grand Motzkin paths of length n having k hills (i.e., ud's starting at level 0). (A Grand Motzkin path is a path in the half-plane x>=0, starting at (0,0), ending at (n,0) and consisting of steps u=(1,1), d=(1,-1) and h=(1,0).).at n=42A109191
• Number of Grand Motzkin paths of length n and having no hills (i.e., no ud's starting at level 0). (A Grand Motzkin path of length n is a path in the half-plane x >= 0, starting at (0,0), ending at (n,0) and consisting of steps u=(1,1), d=(1,-1) and h=(1,0).)at n=12A109192
• Triangle read by rows: T(n,k) = the number of Dyck paths of semilength n with k DUUU's.at n=29A135308
• Index in A092243 where -n first appears.at n=4A269738