

A022549


Sum of a square and a nonnegative cube.


16



0, 1, 2, 4, 5, 8, 9, 10, 12, 16, 17, 24, 25, 26, 27, 28, 31, 33, 36, 37, 43, 44, 49, 50, 52, 57, 63, 64, 65, 68, 72, 73, 76, 80, 81, 82, 89, 91, 100, 101, 108, 113, 121, 122, 125, 126, 127, 128, 129, 134, 141, 144, 145
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OFFSET

1,3


COMMENTS

It appears that there are no modular constraints on this sequence; i.e., every residue class of every integer has representatives here.  Franklin T. AdamsWatters, Dec 03 2009
A045634(a(n)) > 0.  Reinhard Zumkeller, Jul 17 2010


LINKS

R. Zumkeller, Table of n, a(n) for n = 1..10000  Reinhard Zumkeller, Jul 17 2010


MATHEMATICA

q=30; imax=q^2; Select[Union[Flatten[Table[x^2+y^3, {y, 0, q^(2/3)}, {x, 0, q}]]], #<=imax&] (* Vladimir Joseph Stephan Orlovsky, Apr 20 2011 *)


CROSSREFS

Complement of A022550; A002760 and A179509 are subsequences.
Cf. A055394, A045634, A055393, A123291, A169618, A123364, A111925.
Sequence in context: A166110 A087815 A248893 * A045704 A169612 A084581
Adjacent sequences: A022546 A022547 A022548 * A022550 A022551 A022552


KEYWORD

nonn


AUTHOR

N. J. A. Sloane.


STATUS

approved



