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A279419 Numbers k from A284919 such that either k-1 or k+1 is in A277688. 0
0, 2, 4, 6, 28, 58, 62, 80, 82, 88, 112, 118, 124, 128, 148, 152, 164, 166, 178, 190, 208, 212, 214, 224, 238, 242, 248, 250, 268, 284, 290, 292, 296, 298, 308, 320, 322, 326, 328, 332, 338, 346, 358, 368, 380, 388, 392, 398, 406, 410, 418, 422, 430, 434, 440 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

We conjecture that the sequence is infinite. This sequence shows the proximity of A284919 and A277688 based on Goldbach and Lemoine-Levy representations of even and odd numbers respectively.

The differences between the positions of the corresponding terms of A284919 and A277688 are 0,0,0,1,0,2,2,1,1,1,2,3,2,2,2,2,3,1,... .

The differences between these terms are -1,-1,-1,1,-1,-1,1,1,-1,-1,-1,-1,-1,1,-1,1,1,... .

LINKS

Table of n, a(n) for n=1..55.

CROSSREFS

Cf. A284919, A277688.

Sequence in context: A106274 A204661 A284919 * A077633 A006933 A046847

Adjacent sequences:  A279416 A279417 A279418 * A279420 A279421 A279422

KEYWORD

nonn

AUTHOR

Vladimir Shevelev, Apr 11 2017

EXTENSIONS

More terms from Peter J. C. Moses, Apr 11 2017

STATUS

approved

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Last modified September 21 12:21 EDT 2021. Contains 347598 sequences. (Running on oeis4.)