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Search: id:A050420
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A050420 Numbers for which in base 2 the least number of digits that can be removed to leave a palindrome (possibly beginning with 0) is 1. +0
2
2, 4, 6, 8, 10, 11, 13, 14, 16, 18, 19, 22, 23, 25, 29, 30, 32, 34, 35, 36, 37, 41, 42, 43, 46, 47, 49, 53, 54, 55, 59, 61, 62, 64, 66, 67, 69, 76, 77, 81, 82, 83, 89, 90, 91, 94, 95, 97, 101, 102, 103, 109, 111, 115, 123, 125, 126, 128, 130 (list; graph; listen)
OFFSET

1,1

EXAMPLE

(18 base 2) = 10010 -> 1001.

CROSSREFS

Sequence in context: A153170 A067030 A072427 this_sequence A096922 A055954 A161602

Adjacent sequences: A050417 A050418 A050419 this_sequence A050421 A050422 A050423

KEYWORD

nonn,base

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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