A171764 Binary expansion of numbers in A171763.

101, 1001, 1011, 10001, 10011, 10101, 10111, 100001, 100011, 100101, 100111, 101001, 101011, 101101, 101111, 1000001, 1000011, 1000101, 1000111, 1001001, 1001011, 1001101, 1001111, 1010001, 1010011, 1010101, 1010111, 1011001, 1011011, 1011101, 1011111, 10000001

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Formula

a(n) = A007088(A171763(n)). - Amiram Eldar, Sep 01 2020

Mathematica

bin[n_] := FromDigits[IntegerDigits[n, 2]]; bin /@ Select[Range[3, 130, 2], IntegerDigits[#, 2][[1 ;; 2]] == {1, 0} &] (* Amiram Eldar, Sep 01 2020 *)

Crossrefs

Cf. A007088, A171763.

Sequence in context: A200733 A267002 A242138 * A164842 A082276 A069597

Adjacent sequences: A171761 A171762 A171763 * A171765 A171766 A171767

Keyword

nonn,base

Author

N. J. A. Sloane, Oct 12 2010

Status

approved