51212

Appears in sequences

• a(n) is the number of partitions of 5n that can be obtained by adding together five (not necessarily distinct) partitions of n.at n=9A002222
• Numbers k for which 6k+1, 24k+5, 432k^2+72k-1, and 432k^2+90k-1 are all prime.at n=44A175513
• Number of terms in the fully expanded n-th derivative of x^(x^x).at n=42A281434
• Numbers with property that both the digit sum and the sum of the prime factors (counted with multiplicity) have only digits 0 and 1 in base 10.at n=25A297614
• a(n) = 2*n^3 + 9*n^2 + 9*n.at n=28A303609
• Number of uniform relatively prime rooted trees with n nodes.at n=15A317718