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A083666 Palindromes arising when building A083664. 2
2, 6, 33, 44, 88, 161, 171, 222, 232, 252, 272, 323, 414, 434, 464, 494, 505, 525, 555, 616, 858, 1551, 2002, 2112, 2332, 2772, 2992, 3773, 4224, 4554, 4774, 5005, 5225, 5445, 5555, 6336, 6776, 7007, 7667, 8118, 8778, 9009, 10001, 10101, 10701, 11811 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) = A083664(k)*A083664(k+d) for some k, d = 1 or 2.

LINKS

Table of n, a(n) for n=1..46.

EXAMPLE

252=A002113(34), A083664(7)*A083664(7+1)=28*9=252, therefore 252

is a term, also A083664(19)*A083664(19+2)=18*14=252.

CROSSREFS

Cf. A083126.

Sequence in context: A118077 A013976 A213435 * A083126 A098960 A162429

Adjacent sequences:  A083663 A083664 A083665 * A083667 A083668 A083669

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, May 02 2003

STATUS

approved

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Last modified September 19 07:24 EDT 2020. Contains 337178 sequences. (Running on oeis4.)