A213979 Conway's 92 Look and Say audioactive elements, generated in lexicographic order.

1112, 1112133, 111213322112, 111213322113, 1113, 11131, 111311222112, 111312, 11131221, 1113122112, 1113122113, 11131221131112, 111312211312, 11131221131211, 111312211312113211, 111312211312113221133211322112211213322112

Offset: 1

Author

Reinhard Zumkeller, Aug 09 2012

Keywords

• nonn
• fini
• base

References

• J. H. Conway, The weird and wonderful chemistry of audioactive decay, in T. M. Cover and Gopinath, eds., Open Problems in Communication and Computation, Springer, NY 1987, pp. 173-188.

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 1..92
• Kevin Watkins, Abstract Interpretation Using Laziness: Proving Conway's Lost Cosmological Theorem,
• Kevin Watkins, Proving Conway's Lost Cosmological Theorem, POP seminar talk, CMU, Dec 2006
• Eric Weisstein's World of Mathematics, Look and Say Sequence
• Wikipedia, Look-and-say sequence
• Reinhard Zumkeller, Haskell programs for Look and Say audioactive elements

Crossrefs

Cf. A119566, A215403.

Programs

Haskell

see Haskell link.