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A068877 Largest n-digit prime with property that digits alternate in parity. +0
1
7, 89, 983, 8969, 98981, 898987, 9898921, 89898983, 989898989, 8989898969, 98989898981, 898989898987, 9898989898901, 89898989898967 (list; graph; listen)
OFFSET

1,1

EXAMPLE

a(4) = 8969 as 8, 9, 6 and 9 have even and odd parity alternately.

CROSSREFS

Cf. A030144, A068876.

Sequence in context: A089394 A068692 A053302 this_sequence A121044 A107109 A089771

Adjacent sequences: A068874 A068875 A068876 this_sequence A068878 A068879 A068880

KEYWORD

nonn,base

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 19 2002

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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