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A248402 Noncongruent squarefree numbers n with A248394(n)/d(n) = -3, where d(n) = A000005(n). 0
107, 251, 283, 331, 547, 633, 643, 699, 737, 771, 883, 1041, 1147, 1163, 1307, 1459, 1483, 1497, 1523, 1531, 1619, 1627, 1699, 1793, 1883, 1915, 1923, 2049, 2179, 2251, 2283, 2361, 2363, 2411, 2427, 2433, 2443, 2467, 2539, 2651, 2843, 2971, 3091, 3147, 3187, 3203 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..46.

J. B. Tunnell, A classical Diophantine problem and modular forms of weight 3/2, Invent. Math., 72 (1983), 323-334.

CROSSREFS

Cf. A000005, A003273, A248394, A248395, A248397-A248406.

Sequence in context: A142844 A142914 A089635 * A201220 A088563 A142222

Adjacent sequences:  A248399 A248400 A248401 * A248403 A248404 A248405

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 20 2014

EXTENSIONS

More terms from Amiram Eldar, Oct 13 2019

STATUS

approved

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Last modified July 31 10:14 EDT 2021. Contains 346373 sequences. (Running on oeis4.)