A222305 Numbers n such that 9n is in A045980.

0, 1, 3, 6, 7, 8, 13, 14, 21, 24, 27, 31, 38, 39, 43, 48, 52, 56, 57, 64, 73, 78, 81, 84, 91, 95, 104, 105, 111, 112, 125, 133, 134, 147, 148, 155, 157, 162, 168, 183, 186, 189, 192, 195, 206, 211, 216, 237, 241, 244, 245, 248, 258, 259, 273, 291, 294, 301, 304, 305, 307, 312, 343, 344, 351, 372, 375, 378, 381, 384

Offset

1,3

Comments

The sequence "numbers n such that 3n is in A045980" consists of these numbers multiplied by 3.

Links

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

Prog

(PARI) T=thueinit('z^3+1); is(n)=n==0 || #thue(T, 9*n)>0 \\ Charles R Greathouse IV, Nov 29 2014

Crossrefs

Cf. A045980, A222304, A222306.

Sequence in context: A189659 A157041 A293758 * A189098 A241007 A139451

Adjacent sequences: A222302 A222303 A222304 * A222306 A222307 A222308

Keyword

nonn

Author

N. J. A. Sloane, Feb 15 2013, based on a suggestion from Allan C. Wechsler.

Status

approved