1,3
a(n) = A000005(A103855(n)).
R. Zumkeller, p(n)!-p(n )#+1
Cf. A103860, A103894.
Sequence in context: A095382 A135282 A179411 * A007400 A019921 A204617
Adjacent sequences: A103856 A103857 A103858 * A103860 A103861 A103862
nonn
Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 20 2005