Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A082207
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A082207 Palindromes whose product of digits is a palindrome. +0
2
1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 111, 121, 131, 141, 151, 161, 171, 181, 191, 212, 222, 313, 676, 777, 1111, 1221, 1331, 2112, 3113, 11111, 11211, 11311, 11411, 11511, 11611, 11711, 11811, 11911, 12121, 12221, 13131, 16761, 17771, 21112, 21212 (list; graph; listen)
OFFSET

0,2

COMMENT

The unary sequence A000042 is a trivial subsequence. Conjecture: There are infinitely many terms in the sequence (of the type 777) for which the product of digits >10.

EXAMPLE

777 is a member as 7^3 = 343 is a a palindrome.

CROSSREFS

Cf. A082208.

Sequence in context: A099165 A117055 A117056 this_sequence A083115 A103357 A055931

Adjacent sequences: A082204 A082205 A082206 this_sequence A082208 A082209 A082210

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 10 2003

EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 19 2003

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.


AT&T Labs Research