A010047 - OEIS

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A010047

High-temperature expansion of Ising model susceptibility chi_4 for 4-d cubic lattice.

6

2, 64, 2336, 99328, 4840832, 267080704, 16467255296, 1123220758528, 83995566282752, 6835730843582464, 601493660302278656, 56912420061511548928, 5762378580637148905472, 621705383408527748890624, 71206666963479522492809216

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..14.

M. Lüscher and P. Weisz, Application of the linked cluster expansion to the n-component phi^4 theory, Nuclear Physics B 300 (1988), 325-359.

FORMULA

E.g.f.: 2*F(tanh(x)), where F(x) is the g.f. of A010557. - Andrey Zabolotskiy, Nov 19 2024

CROSSREFS

Cf. A010557, A010041 (chi_2), A010044 (mu_2), A010045 (square), A010046 (cubic).

Sequence in context: A122603 A127691 A013822 * A187548 A300640 A054956

Adjacent sequences: A010044 A010045 A010046 * A010048 A010049 A010050

KEYWORD

nonn,changed

AUTHOR

N. J. A. Sloane

STATUS

approved