32869

Properties

Appears in sequences

• Apply partial sum operator thrice to primes.at n=21A014150
• a(n) = [ 1/(2*t(n+1) - t(n) - t(n+2)) ], where t(n) = tan(Pi/2 - 1/n) satisfies n-1 < t(n) < n for all n >= 1.at n=26A024817
• Row sums of the triangle of triangular binomial coefficients given by A098568.at n=9A098569
• Primes of the form Sum_{k=1..n} phi(prime(k)).at n=18A101302
• Define b(0)=28, b(n+1)=2*b(n)+1; sequence gives largest prime factor of b(n).at n=27A113972
• Binary transpose primes. Integers of k^2 bits which, when written row by row as a square matrix and then read column by column, are primes once transformed.at n=31A155967
• Primes in A014150.at n=2A157494
• Number of 8-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-bishop's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions.at n=8A187612
• Indices of primes in the tribonacci-like sequence, A214825.at n=31A230016
• Lesser of consecutive primes whose sum is a palindromic number.at n=40A242386
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood.at n=35A270911
• Values of n such that prime(n) does not divide any 10-digit pandigital number (i.e. any value in A050278).at n=14A292703
• Primes abs(A335592(k))/2 for k in A335593.at n=2A336738
• Value of prime number D for incrementally largest values of minimal x satisfying the equation x^2 - D*y^2 = -3.at n=26A336801
• Value of prime number D for incrementally largest values of minimal y satisfying the equation x^2 - D*y^2 = -3.at n=23A341077
• Value of prime number D for incrementally largest values of minimal x satisfying the equation x^2 - D*y^2 = -5.at n=27A341083
• Value of prime number D for incrementally largest values of minimal y satisfying the equation x^2 - D*y^2 = -5.at n=26A341085
• Prime numbersat n=3524