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A047646 Expand {Product_{j=1..inf} (1-x^j) - 1 }^21 in powers of x. 0
1, -21, 210, -1330, 5964, -19929, 50253, -91920, 97965, 51604, -526659, 1389297, -2280320, 2118690, 769065, -7613319, 17220042, -23999430, 18024405, 10748850, -63778953, 124134772, -152793270, 99072120, 71722224, -341062407, 610085721 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

H. Gupta, On the coefficients of the powers of Dedekind's modular form, J. London Math. Soc., 39 (1964), 433-440.

CROSSREFS

Sequence in context: A166190 A036205 A160787 * A010937 A022616 A133355

Adjacent sequences:  A047643 A047644 A047645 * A047647 A047648 A047649

KEYWORD

sign

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.