A327988 The zeros of A327987.

0, 2, 8, 10, 26, 32, 34, 40, 50, 58, 74, 82, 106, 122, 128, 136, 146, 160, 170, 178, 194, 202, 218, 226, 274, 296, 298, 314, 346, 362, 370, 386, 394, 424, 458, 466, 482, 512, 514, 530, 538, 544, 554, 562, 578, 586, 626, 634, 640, 674, 680, 698, 706, 746, 776

Offset: 1

Author

Peter Luschny, Oct 11 2019

Keywords

• nonn

Comments

For k > 0 the nonnegative integers k such that Sum_{d|k} k & (k/d) = 0, where & is the bitwise AND operator.

Crossrefs

Cf. A327987, A327989.

Programs

Magma

[0] cat [k:k in [1..800]| &+[BitwiseAnd(d,k div d):d in Divisors(k)] eq 0]; // Marius A. Burtea, Oct 11 2019

Maple

select(n -> A327987(n) = 0, [$0..777]);