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A082204
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Begin with a 1, then place the smallest (as far as possible distinct) digits, such that, beginning from the n-th term, n terms form a palindrome.
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2
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1, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(1) = 1; for k > 0, a(3k-1) = a(3k) = 2; a(3k+1) = 3. - David Wasserman (wasserma(AT)spawar.navy.mil), Aug 19 2004
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EXAMPLE
| The first six palindromes are 1, 22, 232, 3223, 22322, 232232.
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CROSSREFS
| Cf. A082205, A082206.
Sequence in context: A121041 A157439 A003589 * A152727 A087159 A062502
Adjacent sequences: A082201 A082202 A082203 * A082205 A082206 A082207
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KEYWORD
| base,easy,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 10 2003
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EXTENSIONS
| More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Aug 19 2004
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