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A033162 Begins with (3, 4); avoids 3-term arithmetic progressions. 1
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 (list; graph; refs; listen; history; text; internal format)
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: A089161 A060965 A153883 * A105133 A211384 A281828

Adjacent sequences:  A033159 A033160 A033161 * A033163 A033164 A033165

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 22 06:02 EDT 2018. Contains 316432 sequences. (Running on oeis4.)