39733

Properties

Appears in sequences

• Crystal ball sequence for A_6 lattice.at n=5A008388
• Numbers k such that the continued fraction for sqrt(k) has period 99.at n=33A020438
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 17.at n=17A031605
• Numbers k such that the decimal part of k^(1/7) starts with a 'nine digits' anagram.at n=16A034282
• Least prime in A031934 (lesser of 16-twins) whose distance to the next 16-twin is 6*n.at n=31A052357
• Primes p such that p's set of distinct digits is {3,7,9}.at n=31A108385
• n-th term of the crystal ball sequence for A_{n+1} lattice for n >= 0.at n=5A108628
• Home primes whose homeliness is 5.at n=23A133964
• a(n) = 1 + n*(n+1)*(n-1)/2.at n=43A158842
• Primes p such that sigma(p+3) = sigma(p-3).at n=8A169596
• Centered 44-gonal numbers.at n=42A195318
• Primes p such that both prevprime(p^2) - 2 and nextprime(p^2) + 2 are also primes.at n=17A226986
• E.g.f.: (cosh(x) + sinh(x)*cosh(2*x)) / sqrt(1 - sinh(x)^2*sinh(2*x)^2).at n=7A245138
• Triangle read by rows in which T(n,k) is the number of length k chains from (0,0) to (n,n) of the poset [n] X [n] ordered by the product order, 0 <= k <= 2n, n>=0.at n=42A316649
• Prime numbersat n=4177