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Search: id:A137317
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| A137317 |
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Array T(n,m)=1+ (n+m-2) mod 26, 1<=n,m<=26, read by rows or columns. |
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+0
3
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| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 1, 2, 4, 5, 6
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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The pattern arises if one assigns numbers A=1 up to Z=26 to the letters in the 26x26 Vigenere square, which contains A to Z in the first row, and circular shifts in the follow-up rows (that is, B..Z,A in the 2nd, C...Z,A,B in the 3rd etc.).
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REFERENCES
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Blaise de Vigenere, Traicte des chiffres ou secretes manieres d'ecrire. Paris. Abel L'Angelier (1586). Section 343, (1)ff, "Separated illustrations". Based on Bellaso, 1553.
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CROSSREFS
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Adjacent sequences: A137314 A137315 A137316 this_sequence A137318 A137319 A137320
Sequence in context: A036218 A025484 A030545 this_sequence A094759 A030542 A008684
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KEYWORD
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nonn,tabf,less,fini,word
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Apr 06 2008
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EXTENSIONS
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Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 06 2008
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