A331632 Distinct values of A055945 in order of their appearance as n grows.

0, 1, 3, 7, 5, -2, 9, 2, 15, -6, 21, 6, 31, 17, -14, 27, -4, 13, -18, 35, 4, -10, 45, 14, 41, 10, 49, 18, 63, 33, -30, 51, -12, -42, 75, 12, 93, 30, 81, 105, 42, 127, 65, -62, 99, -28, 37, -90, 119, -8, 57, -70, 91, -36, 29, -98, 135, 8, 73, -54, 107, -20, -82

Offset: 1

Author

Rémy Sigrist, Jan 23 2020

Keywords

• sign
• base
• look

Examples

			A055945 starts: 0, 0, 1, 0, 3, 0, 3, 0, 7, 0, 5, -2, 9, 2, 7, 0, 15, 0, ...
We keep:        0,    1,    3,          7,    5, -2, 9, 2,       15,    ...
		

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..8032
• Rémy Sigrist, Colored scatterplot of the first 74383 terms (where the color is function of the 2-adic valuation of the least k such that a(n) = A055945(k))

Crossrefs

Cf. A030101, A055945, A331633.

Programs

Mathematica

DeleteDuplicates[Array[# - IntegerReverse[#, 2] &, 200]] (* Paolo Xausa, Apr 28 2025 *)

PARI

s=[]; for (n=0, 151, v=n-fromdigits(Vecrev(binary(n)),2); if (!setsearch(s,v), print1 (v ", "); s=setunion(s, [v])))