155117521

Appears in sequences

• a(n) = binomial(n, floor(n/2)) + 1.at n=30A051920
• Number of compositions of 3n in which the minimal multiplicity of parts equals n.at n=15A244174
• a(n) = binomial(2*n-2, n-1) + (-1)^n.at n=15A286033
• a(n) = binomial(2*(n - 1), n - 1) + 1.at n=16A323230
• a(n) is the smallest base b such that (b+1)^n in base b is a palindrome.at n=29A367857