222224

Appears in sequences

• 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=33A074301
• Product of Fibonacci and Padovan numbers: a(n) = A000045(n+1)*A000931(n+5).at n=17A200220
• Number of (w,x,y,z) with all terms in {1,...,n} and w<2x and y>=2z.at n=33A212505
• a(0) = a(1) = 1; for n > 1, a(n) = Sum_{k=0..n-2} a(k) OR a(n-k-2).at n=20A318621
• Numbers k, not powers of primes, for which A011772(k) divides A344875(k), and for all proper divisors d of k, A011772(d) < A011772(k).at n=24A344694