68341

Appears in sequences

• Expansion of 1/((1-x)(1-9x)(1-12x)).at n=4A016263
• Sum of the first s(n) primes, where s(n) is the sum of the first p(n) primes, where p(n) is the n-th prime. Note that s(n) is A022094.at n=4A123376
• A051838 gives numbers m such that the sum of first m primes divides the product of the first m primes. This sequence gives corresponding values of the sum of first m primes.at n=34A140763
• a(n) = index of second occurrence of A161926(n) in A114381.at n=28A161927
• Number of length 5 1..(n+1) arrays with every leading partial sum divisible by 2, 3 or 5.at n=11A254832
• Numbers in A007504 such that omega(a(n)) = Omega(a(n)) = 3.at n=26A264885
• Expansion of x*(1 - x - x^3)/((1 - x)*(1 - 2*x - 3*x^2 - 2*x^3 - x^4)).at n=11A274203