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A135209 D'Agapeyeff cipher. +0
1
75628, 28591, 62916, 48164, 91748, 58464, 74748, 28483, 81638, 18174, 74826, 26475, 83828, 49175, 74658, 37575, 75936, 36565, 81638, 17585, 75756, 46282, 92857, 46382, 75748, 38165, 81848, 56485, 64858, 56382, 72628, 36281, 81728 (list; graph; listen)
OFFSET

0,1

COMMENT

The D'Agapeyeff cipher is an as-yet unbroken cipher that appears in the first edition of Codes and Ciphers, an elementary book on cryptography published by the Russian-born English cartographer Alexander D'Agapeyeff in 1939

LINKS

Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Dec 05 2007, Table of n, a(n) for n = 0..78

American Cryptogram Association, Discussion of possible causes of failure to solve D'Agapeyeff cipher

Robert Matthews, Description of properties and potential decryption strategies for D'Agapeyeff cipher

CROSSREFS

Cf. A101110, A101111, A101112.

Sequence in context: A116620 A045731 A140940 this_sequence A091294 A096518 A096888

Adjacent sequences: A135206 A135207 A135208 this_sequence A135210 A135211 A135212

KEYWORD

easy,nonn

AUTHOR

Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Dec 05 2007

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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