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A096269
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a(n) = number of distinct palindromes of length n that occur in A096268.
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1
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2, 1, 3, 0, 4, 0, 3, 0, 4, 0, 4, 0, 3, 0, 3, 0, 4, 0, 4, 0, 4, 0, 4, 0, 3, 0, 3, 0, 3, 0, 3, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 4, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| D. Damanik, Local symmetries in the period-doubling sequence, Discrete Appl. Math., 100 (2000), 115-121.
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LINKS
| J.-P. Allouche, M. Baake, J. Cassaigns and D. Damanik, Palindrome complexity
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FORMULA
| For even n >= 4, a(n) = 0; for odd n >= 5, a(n) = a(2n-1) = a(2n+1).
For odd n >= 5, let x be the power of 2 closest to n; if n > x then a(n) = 4 and if n < x then a(n) = 3. - David Wasserman (dwasserm(AT)earthlink.net), Nov 01 2007
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CROSSREFS
| Cf. A096268.
Sequence in context: A180987 A092093 A197386 * A073312 A166514 A160588
Adjacent sequences: A096266 A096267 A096268 * A096270 A096271 A096272
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KEYWORD
| nonn,easy,base
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jun 22 2004
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EXTENSIONS
| More terms from David Wasserman (dwasserm(AT)earthlink.net), Nov 01 2007
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