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 A283750 a(n) = n^2 XOR (n + 1)^2. 1
 1, 5, 13, 25, 9, 61, 21, 113, 17, 53, 29, 233, 57, 109, 37, 481, 33, 101, 45, 249, 41, 93, 1013, 81, 49, 213, 125, 457, 89, 205, 69, 1985, 65, 197, 77, 473, 73, 253, 85, 945, 209, 117, 477, 169, 121, 4013, 229, 417, 97, 165, 1005, 185, 105, 413, 181, 1937, 241, 405, 189, 905, 153, 397, 133, 8065, 129, 389, 141, 921 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS XOR the binary representations of n^2 and (n + 1)^2. LINKS Ilya Gutkovskiy, Extended graphical example Eric Weisstein's World of Mathematics, XOR FORMULA a(n) = A000290(n) XOR A000290(n+1). MATHEMATICA Table[BitXor[n^2, (n + 1)^2], {n, 0, 67}] PROG (PARI) for(n=0, 67, print1(bitxor(n^2, (n + 1)^2), ", ")) \\ Indranil Ghosh, Mar 15 2017 (Python) def A283750(n): return (n**2)^(n + 1)**2 # Indranil Ghosh, Mar 15 2017 CROSSREFS Cf. A000290, A016813 (records), A038712, A112591, A169810. Sequence in context: A140090 A271937 A121511 * A156679 A190618 A309585 Adjacent sequences:  A283747 A283748 A283749 * A283751 A283752 A283753 KEYWORD nonn AUTHOR Ilya Gutkovskiy, Mar 15 2017 STATUS approved

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Last modified May 7 16:00 EDT 2021. Contains 343652 sequences. (Running on oeis4.)