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A078225
a(n) =
A078221
(n+1)/
A078221
(n).
5
3, 3, 11, 101, 10001, 100000001, 10000000000000001, 100000000000000000000000000000001, 10000000000000000000000000000000000000000000000000000000000000001
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..9.
FORMULA
For n>2, a(n) = 10^(2^(n-3))+1
MAPLE
A078221
:= proc(n) if n =1 then 1 ; elif n = 2 then 3 ; else 10^(2^(n-3))-1 ; fi ; end:
A078225
:= proc(n)
A078221
(n+1)/
A078221
(n) ; end: for n from 1 to 20 do print(
A078225
(n)) ; od ; #
R. J. Mathar
, Feb 03 2007, using the formula for
A078221
CROSSREFS
Cf.
A078221
,
A078222
,
A078223
,
A078224
.
Sequence in context:
A350921
A352857
A352582
*
A244247
A211346
A163372
Adjacent sequences:
A078222
A078223
A078224
*
A078226
A078227
A078228
KEYWORD
base
,
nonn
AUTHOR
Amarnath Murthy
, Nov 23 2002
EXTENSIONS
More terms from
R. J. Mathar
, Feb 03 2007, using the formula for
A078221
a(5) corrected by
Max Alekseyev
, Aug 21 2013
STATUS
approved
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Last modified April 23 08:33 EDT 2024. Contains 371905 sequences. (Running on oeis4.)