A005950 - OEIS

A005950

Theta series of 18-dimensional lattice associated with Sp_4(4), with det 256 and minimal norm 3.
(Formerly M5417)

1, 0, 0, 240, 3060, 19584, 77760, 249120, 774180, 2110720, 4621824, 9294480, 19873920, 40049280, 68181120, 110984160, 198425700, 342524160, 509271040, 735758640, 1183095144

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Cf. A005944.

Sequence in context: A269033 A180277 A357257 * A279746 A004536 A234720

Adjacent sequences: A005947 A005948 A005949 * A005951 A005952 A005953

KEYWORD

nonn,easy,nice

AUTHOR

N. J. A. Sloane

EXTENSIONS

In the Encyclopedia of Integer Sequences this lattice was incorrectly described as the laminated lattice LAMBDA_18.

STATUS

approved