27177

Appears in sequences

• Least number k such that (10^n)^k < k!.at n=4A085830
• Number of partitions of n such that neither the number of parts nor the number of distinct parts is a part.at n=42A241380
• Composite numbers equal to the sum of the prime factors, with multiplicity, of the previous k numbers, for some k.at n=12A257525
• Numbers equal to the sum of the prime factors, with multiplicity, of the previous k numbers, for some k.at n=16A257976
• Let P1 >= 5, P2, P3 be consecutive primes, with P2 - P1 = 2. a(n) = (P1 + P2)/12 for the first occurrence of (P3 - P2)/2 = n.at n=21A329252
• 6*a(n) + 1 is the least upper prime p of a pair of twin primes p - 2, p, for which the prime gap immediately following p achieves the size 2*A007494(n).at n=14A337436
• a(n) = (-1)^n + Sum_{k=0..floor((n-1)/2)} a(k) * a(n-2*k-1).at n=34A351973