A230301 Positive numbers not of the form m + wt(m-1), m >= 1.

2, 5, 7, 14, 16, 19, 22, 24, 31, 33, 38, 40, 47, 49, 52, 55, 57, 64, 72, 79, 81, 84, 87, 89, 96, 98, 103, 105, 112, 114, 117, 120, 122, 129, 131, 134, 136, 143, 145, 148, 151, 153, 160, 162, 167, 169, 176, 178, 181, 184, 186, 193, 201, 208, 210, 213, 216, 218, 225, 227, 232, 234, 241, 243, 246, 249, 251, 271, 273, 276

Offset

1,1

Comments

wt(m) = A000120(m).

These are numbers k such that A228085(2^k) = A228085(k-1) = 0, or numbers k such that 2^k is a binary self number (A010061). - Amiram Eldar, Feb 23 2021

Links

Table of n, a(n) for n=1..70.

Index entries for Colombian or self numbers and related sequences

Formula

a(n) = A010061(n) + 1.

Crossrefs

Cf. A000120, A010061, A228085, A230300, A232491.

Sequence in context: A193718 A007438 A338205 * A031457 A044990 A266259

Adjacent sequences: A230298 A230299 A230300 * A230302 A230303 A230304

Keyword

nonn,base

Author

N. J. A. Sloane, Oct 23 2013

Status

approved