323323

Appears in sequences

• First location of palindrome a(n) in decimal expansion of Pi is palindromic.at n=29A038101
• Numbers n with property that n is a substring of its base 4 representation.at n=27A038104
• Denominator of density of integers with smallest prime factor prime(n).at n=7A038111
• Product of 5 successive primes.at n=3A046303
• Palindromes that are the product of 5 distinct primes.at n=20A046395
• For a rational number p/q let f(p/q) = p*q divided by (the sum of digits of p and of q) minus 1; a(n) is obtained by iterating f, starting at n/1, until an integer is reached, or if no integer is ever reached then a(n) = 0.at n=33A059514
• Denominator of 1*2*4*6*...*(prime(n-1)-1) / (2*3*5*7*...*prime(n-1)).at n=8A060753
• a(n) = numerator(n!/phi(n!)).at n=18A076358
• a(n) = numerator(n!/phi(n!)).at n=21A076358
• a(n) = numerator(n!/phi(n!)).at n=20A076358
• a(n) = numerator(n!/phi(n!)).at n=19A076358
• Diagonal of A083486.at n=10A083485
• Triangle read by rows in which the n-th row contains the smallest set of n increasing numbers beginning with n with a product which is a square.at n=65A083486
• Product of primes greater than the greatest prime factor of n but not greater than n.at n=19A083722
• Triangle read by rows: T(n,k) = prime(n)#/prime(k)#, 0<=k<=n.at n=39A096334
• Triangle read by rows in which the k-th term in row n (n >= 1, k = 1..n) is Product_{i=0..k-1} prime(n-i).at n=32A098012
• Denominator of sum of all elements M(i,j,k) = i*j/k, (i,j,k = 1..n). a(n) = Denominator[Sum[Sum[Sum[i*j/k,{i,1,n}],{j,1,n}],{k,1,n}]].at n=22A099866
• Divide n! repeatedly by i! for i from floor(n/2) down through 2; a(n) = remaining quotient.at n=21A111866
• Least k such that the x^n coefficient of cyclotomic polynomial Phi(k,x) has the largest possible magnitude.at n=19A138475
• Least k such that the x^n coefficient of cyclotomic polynomial Phi(k,x) has the largest possible magnitude.at n=17A138475