1203049
domain: N
Appears in sequences
- The first of three consecutive heptagonal numbers the sum of which is equal to the sum of three consecutive primes.at n=22A298301
- a(n) = numerator of Sum_{d|n} tau(d)/pod(d) where tau(k) = the number of the divisors of k (A000005) and pod(k) = the product of the divisors of k (A007955).at n=41A323706