OFFSET
1,1
REFERENCES
Clark Kimberling, "Complementary Equations," Journal of Integer Sequences 10 (2007) Article 07.1.4, 1-14.
EXAMPLE
b(1) = a(a(1))+a(1) = 1+1 = 2;
b(2) = a(a(2))+a(2) = 4+3 = 7;
b(3) = a(a(3))+a(3) = 5+4 = 9.
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 01 2008
STATUS
approved