87179domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = floor(binomial(n,5)/5).at n=37A011851Primes arising as the 10's complement of A109862(n).at n=10A109863a(n) is the numerator of Sum_{k=1..n} 1 / (k*k!).at n=6A353545Prime numbersat n=8465