68747

Appears in sequences

• Let Do(n) = A006566(n) = n-th dodecahedral number. Consider all integer triples (i,j,k), j >= k>0, with Do(i) = Do(j) + Do(k), ordered by increasing i; sequence gives i values.at n=15A053017
• Number of distinct regular languages over 4-ary alphabet, whose minimum regular expression has ordinary length n.at n=6A211953