107495424

Appears in sequences

• For an integer n with prime factorization p_1*p_2*p_3* ... *p_m let n* = (p_1+1)*(p_2+1)*(p_3+1)* ... *(p_m+1); sequence gives n* such that n* is divisible by n, ordered by increasing value of n.at n=26A064518
• Dihedral D3 elliptical invariant transform on A000045: a[n+1]/a[n]= Phi^4=((1+Sqrt[5])/2)^4.at n=11A115852
• Cumulative product of A000120.at n=25A121853
• a(n) is the product of first n terms of sequence A127644.at n=7A127646
• a(n) = n^2*6^n.at n=8A128785
• Fixed points of the map m -> powerback(m) (see A133048 for definition).at n=11A131571
• a(n) = Product_{i=1..n} psi(i) where psi is the Dedekind psi function (A001615).at n=9A175836
• Partial products of A052901.at n=22A208131
• Product of decimal digits of n-th term of the Look and Say sequence A005150.at n=12A253677
• a(n) = product of first k composites, with the i-th composite raised to the d-th power, where k = A055642(n) and d is the i-th digit of n.at n=37A270142
• Number of permutations p of [n] such that p(i)-i is a multiple of eight for all i in [n].at n=27A275063
• Start with 1; multiply alternately by 3 and 4.at n=15A282022
• Superior 2-highly composite numbers: 3-smooth numbers (A003586) k for which there is a real number e > 0 such that d(k)/k^e >= d(j)/j^e for all 3-smooth numbers j, where d(k) is the number of divisors of k (A000005).at n=22A309016
• Positions of records in A050377, number of ways to factor n into "Fermi-Dirac primes" (A050376).at n=29A330687
• a(n) = Product_{d|n} lcm(tau(d), sigma(d)) where tau(k) is the number of divisors of k (A000005) and sigma(k) is the sum of divisors of k (A000203).at n=29A334806
• Numbers k such that A072079(k)/k sets a new record.at n=34A355579
• Numbers that set records in A379592.at n=21A379593
• For an integer k with prime factorization p_1*p_2*p_3* ... *p_m let k* = (p_1+1)*(p_2+1)*(p_3+1)* ... *(p_m+1); sequence gives k* such that k* is divisible by k.at n=26A380574
• Powers k^m, m > 1, where k is an Achilles number whose squarefree kernel is a primorial.at n=26A389226
• Powers k^m, m > 1, where k is an Achilles number that is a product of primorials.at n=16A389260