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A035822 Coordination sequence for lattice D*_74 (with edges defined by l_1 norm = 1). 0
1, 148, 10952, 540348, 19998352, 592275428, 14622792792, 309590672908, 5738394543392, 94605503014708, 1404752160252392, 18977706294953308, 235229004437967792, 2694049802004901508, 28681579910712931192 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

J. Serra-Sagrista, Enumeration of lattice points in l_1 norm, Information Processing Letters, 76, no. 1-2 (2000), 39-44.

LINKS

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

FORMULA

a(m)=add(2^k*binomial(n, k)*binomial(m-1, k-1), k=0..n)+2^n*binomial((n+2*m)/2-1, n-1); with n=74.

CROSSREFS

Sequence in context: A185478 A210159 A252770 * A221349 A178083 A128919

Adjacent sequences:  A035819 A035820 A035821 * A035823 A035824 A035825

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, J. Serra-Sagrista (jserra(AT)ccd.uab.es)

STATUS

approved

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Last modified May 9 09:12 EDT 2021. Contains 343699 sequences. (Running on oeis4.)