

A252707


"Smallest interesting" sequence such that each term has as many digits as the previous term's value.


1




OFFSET

1,1


COMMENTS

Using 2 as the first term yields the "smallest interesting" sequence with this property. Starting with the value 1 yields the sequence 1, 1, 1, ... and starting with 3 yields a sequence that grows faster (3, 100, 10^99, ...).


LINKS



FORMULA

a(1) = 2, a(n) = 10^(a(n1)  1).


MATHEMATICA

RecurrenceTable[{a[n] == 10^(a[n  1]  1), a[1] == 2}, a, {n, 3}] (* Michael De Vlieger, Mar 24 2015 *)


CROSSREFS



KEYWORD

nonn,bref,base


AUTHOR



STATUS

approved



