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 A137317 Array T(n,m) = 1 + (n+m-2) mod 26, 1 <= n,m <= 26, read by rows or columns. 2
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The pattern arises if one assigns numbers A=1 up to Z=26 to the letters in the 26 X 26 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.). REFERENCES 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. LINKS Nathaniel Johnston, Rows 1..26, flattened (full sequence) EXAMPLE The array begins:   1  2  3  4  5  6  7  8  9 10 ...   2  3  4  5  6  7  8  9 10 11   3  4  5  6  7  8  9 10 11 12   4  5  6  7  8  9 10 11 12 13   5  6  7  8  9 10 11 12 13 14   6  7  8  9 10 11 12 13 14 15   7  8  9 10 11 12 13 14 15 16   8  9 10 11 12 13 14 15 16 17   ... MAPLE for n from 1 to 26 do seq(1 + ((n+m-2) mod 26), m=1..26); od; # Nathaniel Johnston, Jun 23 2011 MATHEMATICA Flatten[Table[1+Mod[n+m-2, 26], {n, 10}, {m, 26}]] (* Harvey P. Dale, Feb 05 2012 *) CROSSREFS Sequence in context: A030545 A295886 A318893 * A308702 A326200 A094759 Adjacent sequences:  A137314 A137315 A137316 * A137318 A137319 A137320 KEYWORD nonn,tabf,less,fini,full,word AUTHOR Paul Curtz, Apr 06 2008 EXTENSIONS Edited by R. J. Mathar, Aug 06 2008 STATUS approved

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Last modified February 21 18:05 EST 2020. Contains 332107 sequences. (Running on oeis4.)