A230300 - OEIS

A230300

a(n) = n + wt(n-1), where wt() = A000120() is the binary weight.

1, 3, 4, 6, 6, 8, 9, 11, 10, 12, 13, 15, 15, 17, 18, 20, 18, 20, 21, 23, 23, 25, 26, 28, 27, 29, 30, 32, 32, 34, 35, 37, 34, 36, 37, 39, 39, 41, 42, 44, 43, 45, 46, 48, 48, 50, 51, 53, 51, 53, 54, 56, 56, 58, 59, 61, 60, 62, 63, 65, 65, 67, 68, 70, 66, 68, 69, 71, 71, 73, 74, 76, 75, 77, 78, 80, 80, 82, 83, 85, 83, 85

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

A228085(m-1) gives the number of times m occurs in this sequence.

LINKS

Table of n, a(n) for n=1..82.

Index entries for Colombian or self numbers and related sequences

MAPLE

a:= n-> n+add(i, i=Bits[Split](n-1)):

seq(a(n), n=1..82); # Alois P. Heinz, Jul 05 2024

MATHEMATICA