A371689 Main diagonal of A365495: parity of the n-th term in the trajectory of n under the A014682 map.

1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1

Offset

1

Comments

See A365495 for more information and links.

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Index entries for sequences related to 3x+1 (or Collatz) problem

Formula

a(n) = A368300(n) mod 2 = A365495(n,n-1).

Mathematica

Table[Mod[Nest[If[OddQ[#], (3*#+1)/2, #/2] &, n, n-1], 2], {n, 100}]

Crossrefs

Parity of A368300.

Cf. A014682, A365484, A365495, A371690, A371691.

Sequence in context: A074937 A267418 A263919 * A362129 A267520 A114915

Adjacent sequences: A371686 A371687 A371688 * A371690 A371691 A371692

Keyword

nonn,easy

Author

Paolo Xausa, Apr 04 2024

Status

approved