java - Recursion wrong output -

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i given following code

int go(int x){    if (x<1)       return 1;    else       return x + go(x-2) + go(x-3); }

the answer 7 calling go(3)but everytime (i have hand) 8. logic:

3 + go(1) + go(0)/1 = 3 + go(1) + 1(because 0 less 1)

then,

3 + go(-1) = 3 + 1

therefore,

3 + 4 + 1 = 8.

what doing wrong?

it sounds made mistake go(1) = 3 + go(1-2) actual formula go(1) = 1 + go(1-2) + go(1-3).

  go(3) = 3 + go(1) + go(0) = 3 + go(1) + 1 = 3 + (1 + go(-1) + go(-2)) + 1 = 3 + (1 + 1 + 1) + 1 = 7

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