f2(1)+f(2) |
f(1) |
f2(2)+f(4) |
f(3) |
f2(3)+f(6) |
f(5) |
f2(1005)+f(2010) |
f(2009) |
f(n+1) |
f(n) |
f2(1)+f(2) |
f(1) |
f2(2)+f(4) |
f(3) |
f2(3)+f(6) |
f(5) |
f2(1005)+f(2010) |
f(2009) |
2f(2) |
f(1) |
2f(4) |
f(3) |
2f(2010) |
f(2009) |
A.0 | B.1 | C.2 | D.3 |
A.3 | B.6 | C.7 | D.10 |
f2(1)+f(2) |
f(1) |
f2(2)+f(4) |
f(3) |
f2(3)+f(6) |
f(5) |
f2(4)+f(8) |
f(7) |
A.36 | B.24 | C.18 | D.12 |
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