86905

Appears in sequences

• Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= (n-1)/3.at n=20A048011
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= (n-2)/3.at n=20A048022
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= (n-3)/3.at n=20A048033
• Expansion of ( 1-x-x^2 ) / ( 1-2*x-2*x^2+x^3+x^4 ).at n=13A052960
• Let S denote the palindromes in the language {0,1,2,...,n-1}*; a(n) = number of words of length 4 in the language SS.at n=34A187277
• Number of 2 X n 0..3 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=11A223962
• Number of partitions p of n such that 2*(number of even numbers in p) >= (number of odd numbers in p).at n=46A241654