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A172100 Diagonal of the 26 X 26 Caesar Shift table. 0
3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

Wikipedia, Ceasar cipher

FORMULA

a(n) = 1 + (2*n mod 26).

MATHEMATICA

Clear[a, n, m];

a = Table[1 + Mod[n + m, 26], {m, 1, 26}, {n, 1, 26}];

Table[a[[n, n]], {n, 1, Length[a]}]

CROSSREFS

Sequence in context: A137803 A059533 A189397 * A064679 A081874 A165747

Adjacent sequences:  A172097 A172098 A172099 * A172101 A172102 A172103

KEYWORD

nonn,less,fini,full

AUTHOR

Roger L. Bagula, Jan 25 2010

EXTENSIONS

Keywords added, spelling corrected by the Assoc. Editors of the OEIS, Feb 02 2010

STATUS

approved

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Last modified September 19 04:39 EDT 2019. Contains 327187 sequences. (Running on oeis4.)