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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A160971 Numerators of constant terms of Fourier series of meromorphic modular forms E_k/Delta, where E_k is the normalized k th Eisenstein series [cf. Serre reference] and Delta is the normalized unique weight-twelve cusp form for the full modular group (the generating function of Ramanujan's tau function.) 0
264, -480, 504, -240, 82104, 0, 103128, 1024080, 4203864, 1863840, 5672869224, 15790320, 81426730488, 41356037952960, 185023705021848, 3639088741200, 631566517273421638632, 3701044943799840, 6265985243914780011624 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

REFERENCES

J.-P. Serre, A Course in Arithmetic, Springer-Verlag, 1973, p. 93.

FORMULA

For 2 <= k <= 1000 and k != 7, the 2-order of the full constant term of E_k/Delta = 3 + ord_2(k - 7).

CROSSREFS

Sequence in context: A065570 A050240 A105683 * A185764 A195672 A123654

Adjacent sequences:  A160968 A160969 A160970 * A160972 A160973 A160974

KEYWORD

easy,frac,sign

AUTHOR

Barry Brent (barrybrent(AT)iphouse.com), Jun 01 2009

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 01:56 EST 2012. Contains 205860 sequences.