A303573 - OEIS

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A303573

a(n) = palindrome arising when A230891(n+1) is formed (if there is more than one, use the smallest).

101, 111, 101, 10001, 101101, 1010101, 1001001, 101101, 1010101, 10011001, 10011001, 10111101, 100111001, 100101001, 10111101, 10111101, 100111001, 1000110001, 1000110001, 1001111001, 1001111001, 1001111001, 1011111101, 1011111101, 10001110001, 10001010001

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,1

COMMENTS

Let A230891(n) = X, A230891(n+1) = Y. The binary digits of X and Y can be rearranged to form a base-2 palindrome, possibly in several ways; a(n) is the smallest such palindrome.

LINKS

Rémy Sigrist, Table of n, a(n) for n = 0..29999

Rémy Sigrist, PARI program for A303573

PROG

(PARI) See Links section.

CROSSREFS

Cf. A230891.

Sequence in context: A305396 A266717 A303571 * A050661 A282115 A116642

Adjacent sequences: A303570 A303571 A303572 * A303574 A303575 A303576

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Apr 27 2018

EXTENSIONS

More terms from Rémy Sigrist, Dec 27 2018

STATUS

approved