A161442 Numbers n such that A160700(n) = 2.

2, 19, 32, 49, 70, 87, 100, 117, 138, 155, 168, 185, 206, 223, 236, 253, 259, 274, 289, 304, 327, 342, 357, 372, 395, 410, 425, 440, 463, 478, 493, 508, 512, 529, 546, 563, 580, 597, 614, 631, 648, 665, 682, 699, 716, 733, 750, 767, 769, 784, 803, 818, 837

Offset

1,1

Links

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

Formula

16n - 16 <= a(n) <= 16n - 1. - Charles R Greathouse IV, Jan 25 2018

Prog

(PARI) A160700(n)=my(t=n%16); while(n>15, n>>=4; t=bitxor(t, n%16)); t
a(n)=for(k=16*n-16, 16*n-1, if(a(k)==2, return(k))) \\ Charles R Greathouse IV, Jan 25 2018

Crossrefs

Cf. A161440, A161441, A161443, A161444, A161445, A161446, A161447, A161448, A161449, A161450, A161451, A161452, A161453, A161454, A161455.

Sequence in context: A254897 A059697 A103058 * A135834 A106946 A240552

Adjacent sequences: A161439 A161440 A161441 * A161443 A161444 A161445

Keyword

nonn,easy

Author

Reinhard Zumkeller, Jun 10 2009

Status

approved