63509

Appears in sequences

• G.f. (x + 1)^10/(x^10 + x^9 - x^7 - x^6 - x^5 - x^4 - x^3 + x + 1).at n=41A173243
• Number of sets of nonempty words with a total of n letters over n-ary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.at n=11A293114
• Expansion of (-1 + Product_{k>=1} 1 / (1 + (-x)^k))^3.at n=45A341241