Template talk:Exp B/running

0=0 0+1=

gives ...

1=1 1= {{subst:Exp B/running }}
 * x=1
 * n=3
 * term={{subst:exponent|1|2}}/{{subst:factorial|2}}
 * next_sum=1+Expression error: Unrecognised punctuation character "{"/1
 * sum=1+1
 * value={{subst:substexpr}}1+1{{subst:rightbraces}}