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A114546
A self-descriptive fractal sequence. Each element gives the length and first term of a finite arithmetic sequence. Replace each finite sequence with its length (or first term) and you recover the original infinite sequence.
2
4, 5, 6, 7, 5, 6, 7, 8, 9, 6, 7, 8, 9, 10, 11, 7, 8, 9, 10, 11, 12, 13, 5, 6, 7, 8, 9, 6, 7, 8, 9, 10, 11, 7, 8, 9, 10, 11, 12, 13, 8, 9, 10, 11, 12, 13, 14, 15, 9, 10, 11, 12, 13, 14, 15, 16, 17, 6, 7, 8, 9, 10, 11, 7, 8, 9, 10, 11, 12, 13, 8, 9, 10, 11, 12, 13, 14, 15, 9, 10, 11, 12, 13, 14
OFFSET
4,1
EXAMPLE
The first element is 4, describing the four-term arithmetic sequence 4, 5, 6, 7. The second element, 5, describes the five-term sequence 5, 6, 7, 8, 9.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Kerry Mitchell, Dec 07 2005
STATUS
approved