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\$\begingroup\$ It's not clear from the problem statement, but as long as n is guaranteed to not be negative then the condition can be reduced from n>0 to just n. \$\endgroup\$

JDL
– JDL

2016-08-26 14:26:45 +00:00
Commented Aug 26, 2016 at 14:26
\$\begingroup\$ @JDL Nice ! Thanks ! \$\endgroup\$

Mamie
– Mamie

2016-08-26 15:21:09 +00:00
Commented Aug 26, 2016 at 15:21
\$\begingroup\$ f(n-1) is 6 bytes. I think you save a byte by assigning it to something. i.e. ifelse(n,(a=f(n-1))^2-a+1,2) \$\endgroup\$

user5957401
– user5957401

2016-08-26 16:58:00 +00:00
Commented Aug 26, 2016 at 16:58

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