A103896 Euler's totient of prime(n)! / prime(n)# + 1.

1, 1, 4, 20, 15700, 161520, 659739168, 11887243200, 115875912594352, 1360481062410358294032, 40999220870977029249072, 1854483563489396099991763032000, 106016408292727234808287504322403328, 4534810991759912394035394805790730240

Offset: 1

Author

Reinhard Zumkeller, Feb 20 2005

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..30
• Reinhard Zumkeller, prime(n)! / prime(n)# + 1.

Crossrefs

Cf. A000010, A103861, A103890.

Formula

a(n) = A000010(A103890(n)).