

A038855


Numbers that are divisible by 7 and are differences between two cubes in at least one way.


1



7, 56, 63, 91, 98, 189, 217, 448, 469, 504, 511, 602, 665, 721, 728, 784, 819, 875, 973, 1141, 1197, 1267, 1323, 1330, 1512, 1519, 1603, 1701, 1736, 1946, 1981, 2044, 2072, 2107, 2170, 2401, 2457, 2611, 2646, 2716, 2765, 2863, 3087, 3185, 3311, 3367
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..46.


PROG

(PARI) v=vector(3367); for(i=1, 33, for(j=i+1, 34, d=j^3i^3; if(d<=3367, v[d]++, next(2)))); forstep(n=7, 3367, 7, if(v[n]>0, print1(n ", "))) \\ Donovan Johnson, Dec 31 2013


CROSSREFS

Sequence in context: A009521 A116120 A056719 * A097254 A043911 A044526
Adjacent sequences: A038852 A038853 A038854 * A038856 A038857 A038858


KEYWORD

nonn


AUTHOR

Jeff Burch


EXTENSIONS

2014 changed to 2044 by Donovan Johnson, Dec 31 2013


STATUS

approved



