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A080789 Numbers that are primes when turned upside down. 1
11, 19, 61, 68, 101, 109, 110, 116, 118, 161, 166, 169, 181, 188, 190, 199, 601, 608, 616, 619, 661, 680 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

P. Giannopoulos, The Brainteasers (unpublished)

CROSSREFS

Cf. A057770, A054047.

Sequence in context: A138355 A178385 A139602 * A057770 A080788 A089032

Adjacent sequences:  A080786 A080787 A080788 * A080790 A080791 A080792

KEYWORD

base,easy,nonn

AUTHOR

Giannopoulos P. (pgiannop1(AT)yahoo.com), Mar 12 2003

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Last modified February 18 00:14 EST 2012. Contains 206085 sequences.