207263519017
domain: N
Appears in sequences
- Primes of the form k# + (k+1)#,..,+(k+x)#+1; where k#,(k+1)#,(k+x)# are primorials numbers, members of A002110.at n=6A127729
- a(n) = (sum of first n primorial numbers) minus 1.at n=10A217723
- Numbers k such that k + k'*2 is equal to a partial sum of primorial numbers (a term of A143293), where k' stands for the arithmetic derivative of k, A003415.at n=10A369061