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A330574
a(n) = r_2(n)^2*d(n+1), where r_2 = A004018, d = A000005.
2
1, 32, 32, 0, 32, 256, 0, 0, 48, 64, 128, 0, 0, 256, 0, 0, 32, 384, 32, 0, 256, 0, 0, 0, 0, 576, 256, 0, 0, 512, 0, 0, 64, 0, 256, 0, 32, 256, 0, 0, 128, 512, 0, 0, 0, 256, 0, 0, 0, 96, 576, 0, 128, 512, 0, 0, 0, 0, 128, 0, 0, 256, 0, 0, 64, 2048, 0, 0, 256, 0, 0, 0, 32, 256, 384, 0, 0, 0, 0, 0, 320, 64, 128, 0, 0
OFFSET
0,2
LINKS
Karl-Heinz Indlekofer, Eine asymptotische Formel in der Zahlentheorie, (German) Arch. Math. (Basel) 23 (1972), 619-624. MR0318080 (47 #6629).
MATHEMATICA
Table[SquaresR[2, n]^2 * DivisorSigma[0, n+1], {n, 0, 100}] (* Amiram Eldar, Mar 05 2020 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 10 2020
EXTENSIONS
Offset corrected by Amiram Eldar, Mar 05 2020
STATUS
approved