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A083475
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Consider the set of all the numbers n*k where 1 <= k <= n. Then a(n) = number of palindromic members of this set.
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1
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1, 2, 3, 2, 1, 1, 1, 1, 1, 0, 10, 0, 0, 0, 0, 0, 1, 1, 2, 0, 1, 6, 2, 0, 2, 2, 0, 2, 3, 0, 2, 0, 5, 2, 2, 2, 10, 2, 2, 0, 1, 1, 1, 4, 1, 2, 3, 1, 2, 0, 1, 1, 5, 0, 1, 1, 3, 4, 1, 0, 0, 2, 2, 1, 1, 6, 1, 2, 3, 0, 0, 0, 2, 6, 1, 0, 12, 2, 1, 0, 0, 1, 1, 2, 1, 0, 1, 9, 1, 0, 8, 1, 1, 1, 1, 4, 1, 1, 10, 0, 19, 0, 2, 1
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| a(10k) = 0.
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EXAMPLE
| a(22) = 6 and the palindromes are 22,44,66,88,242,484.
a(26) = 2 and the palindromes are 494 and 676.
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CROSSREFS
| Cf. A083476.
Sequence in context: A108619 A091327 A110540 * A122402 A179008 A174985
Adjacent sequences: A083472 A083473 A083474 * A083476 A083477 A083478
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KEYWORD
| base,nonn
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AUTHOR
| Amarnath Murthy and Meenakshi Sirkanth (amarnath_murthy(AT)yahoo.com), May 03 2003
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EXTENSIONS
| More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Nov 15 2004
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