1678320

Appears in sequences

• Number of 6-ary sequences with primitive period n.at n=8A054721
• Number of primitive (aperiodic) palindromes using a maximum of six different symbols.at n=15A056462
• Number of reduced words of length n in Coxeter group on 37 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=4A162851
• Numbers k such that the square part of k is one greater than the squarefree part of k.at n=12A189883
• Number of length 8 primitive (=aperiodic or period 8) n-ary words.at n=6A218131
• Triangle read by rows: T(n,k) is the number of labeled tiered posets with n elements and height k.at n=41A361956