

A167209


a(0) = 0; for n>=0, a(n+1) = a(n) + x where x is the smallest nonnegative number which is not equal to a(i) +/ a(k) or a(i)/2 for any 0<=i<=n, 0<=k<=n.


4



0, 1, 4, 10, 17, 29, 44, 67, 91, 117, 148, 180, 215, 251, 288, 329, 371, 420, 471, 523, 576, 631, 687, 746, 806, 870, 935, 1004, 1074, 1146, 1221, 1297, 1376, 1456, 1538, 1623, 1709, 1802, 1896, 1993, 2092, 2194, 2300, 2409, 2519, 2631, 2753, 2876, 3001, 3127, 3255, 3385, 3518, 3655, 3796, 3939
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OFFSET

0,3


COMMENTS

A maximal expulsion set of natural numbers.
Note that this definition is different from that of A047699.


LINKS



PROG

(C) See Links section.


CROSSREFS



KEYWORD

nonn


AUTHOR



EXTENSIONS

Initial value changed to a(0)=0 by N. J. A. Sloane, Feb 18 2019 (otherwise the definition did not match the terms).


STATUS

approved



