628864

Appears in sequences

• tan(tanh(x)+arctan(x))=2*x+12/3!*x^3+232/5!*x^5+9184/7!*x^7...at n=4A013143
• Numbers whose product of distinct prime factors is equal to its sum of digits.at n=23A067077
• a(n) = if n mod 2 = 1 then n^3*(n-1)^2/2 else n^5/2.at n=17A122658
• Numbers of the form p^7*q^3 where p and q are distinct primes.at n=8A179705
• Number of 2-step self-avoiding walks on an n X n X n X n 4-cube summed over all starting positions.at n=16A188785
• a(n) = phi(n^4).at n=33A189393
• a(n) = Product_{d|n} (tau(d)*pod(d)) where tau(k) = the number of divisors of k (A000005) and pod(k) = the product of the divisors of k (A007955).at n=33A307101
• Terms of A216427 that are the sum of two coprime terms of A216427.at n=16A307134
• The smaller of a pair of successive cubefull numbers without a powerful number between them.at n=28A371189