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Numbers in cells in spiral A274820 on spoke through center with slope 60 degrees.
6

%I #9 Dec 17 2017 10:11:37

%S 0,2,4,5,7,9,16,11,13,15,20,19,22,21,34,27,28,32,45,35,33,44,42,53,43,

%T 49,60,65,50,51,57,58,55,83,62,64,88,70,67,71,97,76,79,78,81,112,87,

%U 111,91,89,92,96,130,98,134,101,105,140,142,104,108,146,152

%N Numbers in cells in spiral A274820 on spoke through center with slope 60 degrees.

%C It is conjectured that this and A296347 together are a permutation of the nonnegative numbers.

%H Rémy Sigrist, <a href="/A296344/b296344.txt">Table of n, a(n) for n = 0..2500</a>

%H Rémy Sigrist, <a href="/A296344/a296344.gp.txt">PARI program for A296344</a>

%o (PARI) See Links section.

%Y Cf. A274820, A296343, A296345, A296346, A296347, A296348.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Dec 12 2017

%E More terms from _Rémy Sigrist_, Dec 17 2017