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A033629 Numbers that are not the sum of two distinct Ulam numbers. 2
23, 25, 33, 35, 43, 45, 67, 92, 94, 96, 111, 121, 136, 143, 160, 165, 170, 172, 187, 194, 204, 226, 231, 248, 265, 270, 280, 287, 292, 297, 302, 304, 314, 331, 336, 346, 348, 353, 368, 380, 397, 407, 419, 424, 446, 463, 468, 473, 475, 480, 490, 495, 507 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, C4

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

CROSSREFS

Cf. A002858.

Sequence in context: A054865 A054795 A093805 * A090311 A172015 A112073

Adjacent sequences:  A033626 A033627 A033628 * A033630 A033631 A033632

KEYWORD

nonn

AUTHOR

Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu)

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.