A390293 Positions of records in A196047.

1, 2, 3, 5, 10, 11, 22, 25, 31, 55, 79, 93, 97, 121, 127, 211, 257, 341, 487, 509, 661, 907, 1397, 1621, 2293, 3463, 4451, 4943, 7057, 7573, 10501, 10957, 14551, 15227, 20297, 25667, 30463, 35171, 42569, 58067, 73637, 88301, 110603, 115901, 158371, 219251

Offset

1,2

Comments

A number m belongs to this sequence iff A196047(k) < A196047(m) for all k<m.

Links

Table of n, a(n) for n=1..46.

Formula

a(n+1) <= 2*a(n); this follows from the fact that A196047(2*m) = A196047(2) + A196047(m) = 1 + A196047(m); thus if m belongs to this sequence then either 2*m does or there exists a smaller number that does.

Crossrefs

Cf. A196047.

Sequence in context: A259732 A192229 A233696 * A002263 A249991 A039022

Adjacent sequences: A390290 A390291 A390292 * A390294 A390295 A390296

Keyword

nonn

Author

Jakub Kozak, Jan 03 2026

Status

approved