A103891 Smallest prime factor of prime(n)! / prime(n)# + 1.

2, 2, 5, 5, 11, 7, 19, 31, 27893, 223, 554797, 10333, 29, 61, 28652131, 293049347, 7731517, 1483, 73, 337809273983, 67, 440939, 1321, 94099, 89, 107, 281, 1908113757161297657, 479, 61, 167, 3121, 177907, 5039, 11519, 281, 612153149, 587, 2753, 21491, 2897, 97, 307

Offset: 1

Author

Reinhard Zumkeller, Feb 20 2005

Keywords

• nonn

Links

• Reinhard Zumkeller, prime(n)!/prime(n)#+1

Crossrefs

Cf. A020639, A103856, A103890, A103892.

Formula

a(n) = A020639(A103890(n)).

Extensions

a(28)-a(30) from Amiram Eldar, Feb 13 2020

More terms from Jinyuan Wang, Apr 16 2020