A261807 a(n) = n XOR n^3.

0, 0, 10, 24, 68, 120, 222, 336, 520, 720, 994, 1336, 1740, 2200, 2742, 3360, 4112, 4896, 5850, 6872, 8020, 9272, 10638, 12176, 13848, 15632, 17586, 19704, 21980, 24408, 26982, 29760, 32800, 35904, 39338, 42840, 46692, 50680, 54910, 59280, 64040, 68880, 74050, 79544

Offset: 0

Author

Alex Ratushnyak, Sep 01 2015

Keywords

• nonn
• base

Comments

XOR the binary representations of n and n^3.

n^3 + n >= a(n) >= n^3 - n. - Robert Israel, Sep 02 2015

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..8192

Crossrefs

Cf. A169810.

Programs

Maple

seq(Bits[Xor](n,n^3), n=0..100); # Robert Israel, Sep 02 2015

Mathematica

Table[BitXor[n, n^3], {n, 0, 43}] (* Michael De Vlieger, Sep 01 2015 *)

PARI

first(m)=vector(m,i,i--;bitxor(i,i^3)) \\ Anders Hellström, Sep 01 2015

Python

for n in range(55): print(str(n ^ n*n*n), end=",")