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a(n) = A008578(n+3) - A008578(n+1).
5

%I #7 Jan 27 2022 22:08:57

%S 2,3,4,6,6,6,6,6,10,8,8,10,6,6,10,12,8,8,10,6,8,10,10,14,12,6,6,6,6,

%T 18,18,10,8,12,12,8,12,10,10,12,8,12,12,6,6,14,24,16,6,6,10,8,12,16,

%U 12,12,8,8,10,6,12,24,18,6,6,18,20,16,12,6,10,14,14,12,10,10,14,12,12,18,12

%N a(n) = A008578(n+3) - A008578(n+1).

%C For n>0: a(n) = A031131(n) and a(n) - a(n-1) = A075526(n).

%Y Cf. A000040, A076272, A076273.

%Y Cf. A008578, A031131, A075526.

%K nonn

%O 0,1

%A _Reinhard Zumkeller_, Sep 22 2002

%E Correction for change of offset in A158611 and A008578 in Aug 2009 _Jaroslav Krizek_, Jan 27 2010