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a(1)=a(2)=1. a(n) = A020639(a(n-1)) + A006530(a(n-2)).
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%I #5 Apr 09 2014 10:13:02

%S 1,1,2,3,5,8,7,9,10,5,10,7,12,9,6,5,8,7,9,10,5,10,7,12,9,6,5,8,7,9,10,

%T 5,10,7,12,9,6,5,8,7,9,10,5,10,7,12,9,6,5,8,7,9,10,5,10,7,12,9,6,5,8,

%U 7,9,10,5,10,7,12,9,6,5,8,7,9,10,5,10,7,12,9,6,5,8,7,9,10,5,10,7,12,9,6,5,8

%N a(1)=a(2)=1. a(n) = A020639(a(n-1)) + A006530(a(n-2)).

%F For n >= 0, a(11n+5) = 5, a(11n+6) = 8, a(11n+7) = 7, a(11n+8) = 9, a(11n+9) = 10, a(11n+10) = 5, a(11n+11) = 10, a(11n+12) = 7, a(11n+13) = 12, a(11n+14) = 9, a(11n+15) = 6.

%Y Cf. A006530, A020639.

%K easy,nonn

%O 1,3

%A _Leroy Quet_, Feb 26 2006