

A103369


Number in the 2digitaddition sequence at which the eventually periodic part starts.


4



1, 4, 37, 4, 89, 89, 1, 89, 37, 1, 4, 89, 1, 89, 16, 16, 89, 37, 1, 20, 89, 89, 1, 20, 89, 16, 89, 1, 89, 37, 1, 1, 37, 89, 89, 89, 37, 58, 37, 16, 89, 42, 89, 1, 89, 89, 37, 89, 1, 89, 16, 89, 89, 89, 89, 37, 37, 58, 37, 89, 37, 16, 89, 89, 37, 89, 89, 1, 16, 1, 89, 89, 58
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OFFSET

1,2


COMMENTS

a(A007770(n)) = 1; a(A031177(n)) > 1.  Reinhard Zumkeller, Mar 16 2013


LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Digitaddition


EXAMPLE

The 2digitaddition sequence for n = 3 is {3, 9, 81, 65, 61, 37, 58, 89, 145, 42, 20, 4, 16, 37, ...}, so a(3) = 37.


PROG

(Haskell)
a103369 = until (`elem` a039943_list) a003132
a103369_list = map a103369 [1..]
 Reinhard Zumkeller, Oct 17 2011, Aug 24 2011


CROSSREFS

Cf. A007770, A031176, A003132, A039943.
Sequence in context: A061024 A297105 A222517 * A031189 A045555 A297803
Adjacent sequences: A103366 A103367 A103368 * A103370 A103371 A103372


KEYWORD

nonn,base


AUTHOR

Eric W. Weisstein, Feb 02 2005


STATUS

approved



