login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A267195 The j-invariants in A032354 are perfect cubes, except for two terms that have an extra factor of 2 or 3. Ignore these two extra factors and take the cube roots. 1
0, 12, -15, 20, -32, 30, 66, -96, -160, 255, -960, -5280, -640320 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

H. Cohn, Introduction to the Construction of Class Fields, Cambridge; p. 183.

LINKS

Table of n, a(n) for n=1..13.

CROSSREFS

Cf. A032354, A133675.

Sequence in context: A144266 A162826 A162820 * A259040 A158190 A122040

Adjacent sequences:  A267192 A267193 A267194 * A267196 A267197 A267198

KEYWORD

sign,fini,full

AUTHOR

N. J. A. Sloane, Jan 27 2016

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 16 06:18 EST 2019. Contains 330016 sequences. (Running on oeis4.)