A033162 Begins with (3, 4); avoids 3-term arithmetic progressions.

3, 4, 6, 7, 12, 13, 15, 16, 30, 31, 33, 34, 39, 40, 42, 43, 84, 85, 87, 88, 93, 94, 96, 97, 111, 112, 114, 115, 120, 121, 123, 124, 246, 247, 249, 250, 255, 256, 258, 259, 273, 274, 276, 277, 282, 283, 285, 286, 327, 328, 330, 331, 336, 337, 339, 340, 354, 355, 357, 358, 363

Offset

1,1

Comments

Also: Stanley sequence S(3). - M. F. Hasler, Jan 18 2016

References

Iacobescu, F. 'Smarandache Partition Type and Other Sequences.' Bull. Pure Appl. Sci. 16E, 237-240, 1997.

H. Ibstedt, A Few Smarandache Sequences, Smarandache Notions Journal, Vol. 8, No. 1-2-3, 1997, 170-183.

Links

Table of n, a(n) for n=1..61.

Eric Weisstein's World of Mathematics, Nonarithmetic Progression Sequence

Index entries related to Stanley sequences

Formula

a(n) = A005836(n)+3. - M. F. Hasler, Jan 18 2016

Crossrefs

a(n) = A003278(n)+2

Sequence in context: A350475 A060965 A153883 * A105133 A211384 A281828

Adjacent sequences: A033159 A033160 A033161 * A033163 A033164 A033165

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved