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A024605 Number in position n when the numbers i^2 - i*j + j^2 (1 <= i <= j) are arranged in nondecreasing order. 0
1, 3, 4, 7, 7, 9, 12, 13, 13, 16, 19, 19, 21, 21, 25, 27, 28, 28, 31, 31, 36, 37, 37, 39, 39, 43, 43, 48, 49, 49, 49, 52, 52, 57, 57, 61, 61, 63, 63, 64, 67, 67, 73, 73, 75, 76, 76, 79, 79, 81, 84, 84, 91, 91, 91, 91, 93, 93, 97, 97, 100, 103, 103, 108, 109, 109, 111, 111, 112, 112, 117, 117 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..72.

CROSSREFS

Sequence in context: A197034 A180020 A162431 * A215630 A168563 A261368

Adjacent sequences:  A024602 A024603 A024604 * A024606 A024607 A024608

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified January 29 10:34 EST 2020. Contains 331337 sequences. (Running on oeis4.)