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 A267958 4 times A042965. 2
 0, 4, 12, 16, 20, 28, 32, 36, 44, 48, 52, 60, 64, 68, 76, 80, 84, 92, 96, 100, 108, 112, 116, 124, 128, 132, 140, 144, 148, 156, 160, 164, 172, 176, 180, 188, 192, 196, 204, 208, 212, 220, 224, 228, 236, 240, 244, 252, 256, 260, 268, 272, 276, 284, 288, 292, 300, 304 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Ordered list of differences between even squares. LINKS FORMULA Numbers of the form (2m)^2 - (2n)^2, sorted. EXAMPLE (2*0)^2 - (2*0)^2 = 0, (2*1)^2 - (2*0)^2 = 4, (2*2)^2 - (2*1)^2 = 12, (2*2)^2 - (2*0)^2 = 16, (2*3)^2 - (2*2)^2 = 20, ... PROG (Python) def DifferenceOfEvenSquares(maximumBound):     sequence = set([0])     for x in range(0, maximumBound+1, 4):         if x % 16 != 8:             sequence.add(x)     print(sorted(sequence)) CROSSREFS Cf. A008590, A042965. Sequence in context: A310564 A053362 A310565 * A077770 A310566 A108269 Adjacent sequences:  A267955 A267956 A267957 * A267959 A267960 A267961 KEYWORD easy,nonn AUTHOR Matthew Burch, Jan 22 2016 STATUS approved

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Last modified December 3 15:42 EST 2020. Contains 338906 sequences. (Running on oeis4.)