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A102484 Numbers of the concatenated form 9nn9. 3
9009, 9119, 9229, 9339, 9449, 9559, 9669, 9779, 9889, 9999, 910109, 911119, 912129, 913139, 914149, 915159, 916169, 917179, 918189, 919199, 920209, 921219, 922229, 923239, 924249, 925259, 926269, 927279, 928289, 929299, 930309 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

For n=0 we concatenate 3, 0, 0 and 3 to get 3003.

For n=10 we concatenate 3, 10, 10 and 3 to get 310103.

CROSSREFS

Cf. A100846 for 1nn1; A100896 for 3nn3; A100897 for 7nn7.

Sequence in context: A144126 A202531 A106770 * A196994 A031683 A031593

Adjacent sequences:  A102481 A102482 A102483 * A102485 A102486 A102487

KEYWORD

easy,nonn,base

AUTHOR

Mark Hudson (mrmarkhudson(AT)hotmail.com), Jan 12 2005

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Last modified February 15 16:28 EST 2012. Contains 205823 sequences.