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A059997 (n/2)*(n + 1)*(3*n + 11). 2
14, 51, 120, 230, 390, 609, 896, 1260, 1710, 2255, 2904, 3666, 4550, 5565, 6720, 8024, 9486, 11115, 12920, 14910, 17094, 19481, 22080, 24900, 27950, 31239, 34776, 38570, 42630, 46965, 51584, 56496, 61710, 67235, 73080, 79254, 85766, 92625 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Number of dimensions for non-compact n-manifolds.

REFERENCES

John Nash, The Imbedding Problem For Riemannian Manifolds, Annals of Mathematics, Vol. 63, No. 1, 1956, pp. 20-63.

Harold W. Kuhn and Sylvia Nasar, eds., The Essential John Nash, Princeton University Press, Princeton, NJ, 2002, Chapter 11, page 207.

LINKS

Harry J. Smith, Table of n, a(n) for n=1,...,1000

FORMULA

a(n)=4*a(n-1)-6*a(n-2)+4*a(n-3)-a(n-4). G.f.: x*(14-5*x)/(1-x)^4. [Colin Barker, Jan 28 2012]

MATHEMATICA

Table[3/2n^3 + 7n^2 + 11/2n, {n, 1, 40}]

PROG

(PARI) { for (n=1, 1000, write("b059997.txt", n, " ", n*(n + 1)*(3*n + 11)/2); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 01 2009]

CROSSREFS

Sequence in context: A039309 A043912 A009961 * A007588 A129025 A113907

Adjacent sequences:  A059994 A059995 A059996 * A059998 A059999 A060000

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Mar 10 2001

EXTENSIONS

Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 02 2002

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Last modified February 17 23:08 EST 2012. Contains 206085 sequences.