A334078 - OEIS

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A334078

a(n) is the smallest positive integer that can be expressed as the difference of two positive squares in at least n ways.

1

3, 15, 45, 96, 192, 240, 480, 480, 720, 960, 1440, 1440, 2880, 2880, 2880, 3360, 5040, 5040, 6720, 6720, 10080, 10080, 10080, 10080, 20160, 20160, 20160, 20160, 20160, 20160, 30240, 30240, 40320, 40320, 40320, 40320, 60480, 60480, 60480, 60480, 80640, 80640

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

Eric Weisstein's World of Mathematics, Square Number

CROSSREFS

Cf. A000290, A024352, A048610, A068314, A094191, A100073, A214771, A334077.

Sequence in context: A177146 A161400 A112810 * A094191 A050534 A048099

Adjacent sequences: A334075 A334076 A334077 * A334079 A334080 A334081

KEYWORD

nonn

AUTHOR

Ilya Gutkovskiy, Apr 13 2020

STATUS

approved