Feel free to not use the name:)
sub b262b10{ my ($n,$x)=(0,'A'); ++$n until $x++ eq $_[0]; ++$n }
print $_, ':', b262b10( $_ ), $/ for qw[A Z AA AZ BA ZZ AAA ZBA]
A : 1
Z : 26
AA : 27
AZ : 52
BA : 53
ZZ : 702
AAA : 703
ZBA : 17629
Update: Lest anyone not realise it, this okay as a golf solution, but it is not a serious contender for anything real as it is horribly inefficient.
Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
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