login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A091391 Aronson's mod 17 sequence: "T is the first, fourth, eleventh, sixteenth, seventh, ... letter in this sentence, not counting spaces and commas and all mod 17". 4
1, 4, 11, 16, 7, 12, 16, 6, 8, 13, 1, 5, 10, 16, 1, 5, 9, 15, 2, 4, 7, 12, 16, 5, 9, 14, 2, 6, 1, 8, 10, 15, 3, 7, 12, 0, 6, 10, 4, 10, 15, 0, 3, 8, 12, 14, 7, 9, 14, 3, 8, 10, 13, 2, 4, 7, 12, 16, 5, 7, 16, 1, 6, 12, 16, 6, 11, 0, 4, 6, 15, 0, 3, 5, 9, 13, 8, 15, 0, 5, 10, 14, 2, 9, 14, 1, 7, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Infinite? Periodic? It seems the answers are "Yes and No" because many numbers (such as "tenth") have multiple T's and moreover, in many of these, the T's are spread such that at least one of them will be != 2 mod 17 (2 is important because "second" is the only T-less word)

REFERENCES

A. J. Aronson, quoted by D. R. Hofstadter in Metamagical Themas, Basic Books, NY, 1985, p. 44.

LINKS

Table of n, a(n) for n=0..87.

B. Cloitre, N. J. A. Sloane and M. J. Vandermast, Numerical analogues of Aronson's sequence, J. Integer Seqs., Vol. 6 (2003), #03.2.2.

CROSSREFS

Cf. A005224, A091387, A091388, A091389, A091390.

Sequence in context: A320494 A190509 A022131 * A135105 A193587 A261155

Adjacent sequences:  A091388 A091389 A091390 * A091392 A091393 A091394

KEYWORD

easy,nonn,word

AUTHOR

Sam Alexander, Jan 05 2004

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 15 19:18 EST 2019. Contains 329149 sequences. (Running on oeis4.)