

A145155


Coefficients in expansion of Delta'(q).


0



1, 48, 756, 5888, 24150, 36288, 117208, 675840, 1022787, 1159200, 5880732, 4451328, 7510594, 5625984, 18257400, 15794176, 117400878, 49093776, 202566980, 142195200, 88609248, 282275136, 428795256, 510935040, 637480625, 360508512, 1978535160
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OFFSET

0,2


COMMENTS

First derivative of cusp form Delta (see A000594).


REFERENCES

M. Kaneko and D. Zagier, Supersingular jinvariants, hypergeometric series and Atkin's orthogonal polynomials, pp. 97126 of D. A. Buell and J. T. Teitelbaum, eds., Computational Perspectives on Number Theory, Amer. Math. Soc., 1998.


LINKS

Table of n, a(n) for n=0..26.


MAPLE

with(numtheory); E:=proc(k) series(1(2*k/bernoulli(k))*add( sigma[k1](n)*q^n, n=1..60), q, 61); end; Delta:=series((E(4)^3E(6)^2)/1728, q, 60); diff(%, q);


CROSSREFS

Sequence in context: A186162 A102279 A132464 * A105948 A192839 A014401
Adjacent sequences: A145152 A145153 A145154 * A145156 A145157 A145158


KEYWORD

sign


AUTHOR

N. J. A. Sloane, Feb 28 2009


STATUS

approved



