A200658 a(n) = A200656(n)^3 - A200657(n)^2.

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.

Links

Table of n, a(n) for n=1..9.

Crossrefs

Cf. A200218, A200656, A200657.

Sequence in context: A235237 A237138 A201268 * A303266 A355309 A185530

Adjacent sequences: A200655 A200656 A200657 * A200659 A200660 A200661

Keyword

sign

Author

Artur Jasinski, Nov 20 2011

Status

approved