2704157

Properties

Appears in sequences

• a(n) = binomial(n, floor(n/2)) + 1.at n=24A051920
• List of primes p which are equal to a central binomial coefficient C(n,floor(n/2)) plus 1.at n=8A066749
• a(n) = Sum_{d|n} binomial(2*d-2,d-1).at n=12A066768
• Primes of the form (2*n)!/(n!)^2+1.at n=5A075840
• Primes within +1 or -1 of a central binomial coefficient C(2n,n).at n=9A117315
• Swinging primes: primes which are within 1 of a swinging factorial (A056040).at n=16A163074
• Primes of the form k$ + 1. Here '$' denotes the swinging factorial function (A056040).at n=8A163075
• Number of compositions of 3n in which the minimal multiplicity of parts equals n.at n=12A244174
• a(n) = binomial(2*(n - 1), n - 1) + 1.at n=13A323230
• a(n) = Sum_{d|n} binomial(n+d-2, n-1).at n=12A332508
• a(n) = least prime > binomial(2n, n).at n=12A359292
• a(n) = Sum_{d|n} (n/d)^(d-1) * binomial(d+n-2,n-1).at n=12A363666
• a(n) = Sum_{d|n} (n/d)^(n-n/d) * binomial(d+n-2,n-1).at n=12A363667
• a(n) is the smallest base b such that (b+1)^n in base b is a palindrome.at n=23A367857
• Prime numbersat n=196917