53295

Appears in sequences

• Odd numbers divisible by the palindromic sum of their prime factors (counted with multiplicity).at n=16A046359
• Composite a(n) divided by the palindromic sum of its prime factors is a palindrome (counted with multiplicity).at n=8A046361
• Odd numbers with exactly 5 distinct prime factors.at n=23A046391
• Non-palindromic solutions to sigma(R(n)) = sigma(n), where R = A004086 is digit-reversal.at n=22A085329
• a(n) is the number of terms in the expansion of (x+y+z)*(x^2+y^2+z^2)*(x^3+y^3+z^3)*...*(x^n+y^n+z^n).at n=24A086796
• Numbers n such that the middle coefficient of the cyclotomic polynomial Phi_n(x) has a value not obtained for any smaller n.at n=28A095877
• a(n) = n*(n-1)*(n-2)*(3*n-2)/6.at n=19A096200
• a(n) = 49*n^2 - 2*n.at n=32A157362
• Product of all primes p such that 2n - p is also prime.at n=9A238711
• A close cousin of A222311 (see Cobeli et al. 2015 for precise definition).at n=26A275914
• Expansion of Sum_{i>=1} x^(i^2) / (1 - Sum_{j>=1} x^(j^2))^2.at n=25A281704
• Squarefree products of k primes that are symmetrically distributed around their average. Case k = 5.at n=0A294752
• a(n) is the least squarefree integer, product of n primes that are symmetrically distributed around their average.at n=4A294906
• Expansion of (1 - x^2)*Product_{k>=2} (1 + x^k)^k.at n=25A303902
• Odd squarefree composite numbers k, divisible by the sum of their prime factors, sopfr (A001414).at n=33A308643
• Number of Dyck paths of semilength n having exactly three (possibly overlapping) occurrences of the consecutive step pattern UDU, where U = (1,1) and D = (1,-1).at n=12A371408