1,1
Table of n, a(n) for n=1..5.
a(n) = A000040(n) - A133578(n)
a(1) = 2 - 4 = -2 -> for prime 2
a(2) = 3 - 6 = -3 -> for prime 3
a(3) = 5 - 9 = -4 -> for prime 5
a(4) = 7 - 11 = -4 -> for prime 7
a(5) = 11 - 14 = -3 -> for prime 11
Cf. A133578, A000040.
Sequence in context: A014292 A066078 A058339 * A093150 A167831 A090281
Adjacent sequences: A133849 A133850 A133851 * A133853 A133854 A133855
sign
Alexander R. Povolotsky, Jan 06 2008
approved
