45716

Appears in sequences

• Numbers k such that k and k+1 have the same sum of unitary divisors and the same number of divisors.at n=10A064348
• Positive numbers of the form x^5-10x^3*y^2+5x*y^4 (where x,y are integers and x>y).at n=10A135791
• Numbers of the form x^5-10x^3*y^2+5x*y^4 (where x,y are integers).at n=34A135793
• Number of right triangles on a (n+1)X9 grid.at n=17A189813
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 245", based on the 5-celled von Neumann neighborhood.at n=40A271006
• Numbers k such that (598*10^k - 31)/9 is prime.at n=26A281991
• Numbers k such that bsigma(k) = bsigma(k+1), where bsigma(k) is the sum of the bi-unitary divisors of k (A188999).at n=31A293183
• Numbers k such that iphi(k) = iphi(k+1), where iphi is the infinitary totient function (A064380).at n=13A301866
• Numbers k such that isigma(k) = isigma(k+1), where isigma(k) is the sum of the infinitary divisors of k (A049417).at n=33A306985
• Numbers k such that k and k+1 have the same average of unitary divisors.at n=28A349222
• Numbers k such that k and k+1 have an equal sum of modified exponential divisors: A241405(k) = A241405(k+1).at n=34A379032