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A200658
a(n) = A200656(n)^3 - A200657(n)^2.
3
52488, 15336, -20088, 219375, -293625, 981504, -1285632, -474552, 1367631
OFFSET
1,1
COMMENTS
For x values see A200656.
For y values see A200657.
Definition: Secondary terms occured when existed such integer k that A200656 is divisible by k^2 and A200657 is divisible by k^3 and A200658 is divisible by k^6.
Terms free of such k are primary terms.
Secondary terms are: a(6)=a(2)*2^6, a(7)=a(3)*2^6.
A200218 is subset of this sequence.
CROSSREFS
KEYWORD
sign
AUTHOR
Artur Jasinski, Nov 20 2011
STATUS
approved