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URL: https://oeis.org/A055434

⇱ A055434 - OEIS

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A055434
Number of points in Z^n of norm <= 10.
2
1, 21, 317, 4169, 49689, 532509, 5260181, 48218513, 415055025, 3375505573, 26107328109, 193280122713, 1374386800585, 9405092131245, 62077194367429, 396122100447649, 2449318034512737, 14705097001902901, 85877415063465373
OFFSET
0,2
MATHEMATICA
a[n_] := SeriesCoefficient[1/(1-x) Sum[x^(i^2), {i, -10, 10}]^n, {x, 0, 100}];
a /@ Range[0, 18] (* Jean-François Alcover, Sep 29 2019, from A302997 *)
CROSSREFS
Row n=10 of A302997.
Sequence in context: A021214 A016318 A017954 * A016315 A113531 A069572
KEYWORD
nonn
STATUS
approved