A094917 Contract every run of consecutive identical terms in A090822 to a single term.

1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 1, 2, 1

Offset

1,2

Links

Table of n, a(n) for n=1..99.

F. J. van de Bult, D. C. Gijswijt, J. P. Linderman, N. J. A. Sloane and Allan Wilks, A Slow-Growing Sequence Defined by an Unusual Recurrence, J. Integer Sequences, Vol. 10 (2007), #07.1.2.

F. J. van de Bult, D. C. Gijswijt, J. P. Linderman, N. J. A. Sloane and Allan Wilks, A Slow-Growing Sequence Defined by an Unusual Recurrence [pdf, ps].

Index entries for sequences related to Gijswijt's sequence

Example

A090822 begins 1,1,2,1,1,2,2,2,3,1,1,2,1,1,2,2,2,3,2,... which contracts to 1,2,1,2,3,1,2,1,2,3,2,...

Crossrefs

Sequence in context: A091412 A106036 A007001 * A082691 A280052 A183198

Adjacent sequences: A094914 A094915 A094916 * A094918 A094919 A094920

Keyword

nonn

Author

N. J. A. Sloane, Jun 18 2004

Status

approved