464221105

Appears in sequences

• Generalized central binomial coefficients for k=2.at n=17A121724
• Number of n-ary words beginning with the first character of the alphabet, that can be built by inserting nine doublets into the initially empty word.at n=5A194721
• Number of 5-ary words either empty or beginning with the first character of the alphabet, that can be built by inserting n doublets into the initially empty word.at n=9A194725