200340

Appears in sequences

• Susceptibility series H_3 for 2-dimensional Ising model (divided by 2).at n=35A054410
• Numbers n such that (i) the largest prime factor of n is not a palindrome and (ii) the sum of the factorials of the digits of n is equal to the largest prime factor of n reversed.at n=26A074301
• Let f(k) denote the largest prime factor of k which is not a palindrome. Sequence gives numbers k such that the sum of the factorials of the digits of k is equal to f(k) reversed.at n=27A111185
• Number of Dyck paths of semilength n such that each positive level has exactly eight peaks.at n=28A288324
• Numbers whose divisors have a harmonic mean with a denominator 2.at n=33A348411