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A279353 a(n) = A055938(n+1) XOR A055938(n). 3
7, 3, 15, 5, 1, 3, 31, 5, 1, 13, 3, 7, 1, 3, 63, 5, 1, 13, 3, 7, 1, 29, 3, 7, 3, 13, 1, 7, 1, 3, 127, 5, 1, 13, 3, 7, 1, 29, 3, 7, 3, 13, 1, 7, 1, 61, 3, 7, 3, 13, 1, 7, 3, 29, 1, 5, 15, 3, 1, 7, 1, 3, 255, 5, 1, 13, 3, 7, 1, 29, 3, 7, 3, 13, 1, 7, 1, 61, 3, 7, 3, 13, 1, 7, 3, 29, 1, 5, 15, 3, 1, 7, 1, 125, 3, 7, 3, 13, 1, 7, 3, 29, 1, 5, 15 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..8191

FORMULA

a(n) = A055938(n+1) XOR A055938(n).

MATHEMATICA

Function[t, BitXor @@ # & /@ Transpose@ {Rest@ t, Most@ t}]@ Complement[Range@ Last@ #, #] &@ Table[IntegerExponent[(2 n)!, 2], {n, 0, 112}] (* Michael De Vlieger, Mar 15 2017, after Jean-Fran├žois Alcover at A055938 *)

PROG

(Scheme) (define (A279353 n) (A003987bi (A055938 (+ 1 n)) (A055938 n))) ;; Here A003987bi implements a bitwise-XOR (A003987).

CROSSREFS

Cf. A003987, A055938, A279340, A279357.

Sequence in context: A248280 A255772 A195159 * A200943 A283289 A284477

Adjacent sequences:  A279350 A279351 A279352 * A279354 A279355 A279356

KEYWORD

nonn

AUTHOR

Antti Karttunen, Mar 15 2017

STATUS

approved

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Last modified September 20 04:06 EDT 2019. Contains 327212 sequences. (Running on oeis4.)