4339335

Appears in sequences

• Boundaries of primorial intervals [1,3]; [3,9],[9,15]; [15,45], etc.at n=33A065917
• Numbers k such that 2*k-1, 4*k-1, 6*k-1, 8*k-1, 10*k-1 and 12*k-1 are primes.at n=11A124489
• Numbers n such that 2n-1, 4n-1, 6n-1, 8n-1, 10n-1, 12n-1 and 14n-1 are primes.at n=3A124490
• Odd unitary abundant numbers that are not odd, squarefree, ordinary abundant numbers.at n=12A129486
• Numbers with exactly 6 distinct odd prime divisors {3,5,7,11,13,17}.at n=8A147579
• a(0)=1, and for n >= 1, a(n) = p_n * A002110(n) / 2, where p_n is the n-th prime.at n=7A243054
• Self-inverse permutation of nonnegative integers, A075158-conjugate of the inverse of gray code: a(n) = 1 + A075157(A006068(A075158(n-1))).at n=40A245452