A161455 Numbers n such that A160700(n) = 15.

15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 270, 287, 300, 317, 330, 347, 360, 377, 390, 407, 420, 437, 450, 467, 480, 497, 525, 540, 559, 574, 585, 600, 619, 634, 645, 660, 679, 694, 705, 720, 739, 754, 780, 797, 814, 831, 840

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)==15, return(k))) \\ Charles R Greathouse IV, Jan 25 2018

Crossrefs

Cf. A161440, A161441, A161442, A161443, A161444, A161445, A161446, A161447, A161448, A161449, A161450, A161451, A161452, A161453, A161454.

Sequence in context: A044855 A044900 A008597 * A033027 A044840 A033012

Adjacent sequences: A161452 A161453 A161454 * A161456 A161457 A161458

Keyword

nonn,easy

Author

Reinhard Zumkeller, Jun 10 2009

Status

approved