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A015627 Quadruples of different integers from [ 2,n ] with no global factor. 0
0, 0, 0, 1, 5, 15, 34, 69, 121, 205, 314, 479, 679, 961, 1290, 1745, 2239, 2919, 3650, 4599, 5619, 6949, 8290, 10057, 11861, 14105, 16418, 19343, 22165, 25819, 29424, 33799, 38199, 43631, 48780, 55325, 61649, 69199, 76632, 85771, 94235, 104895 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,5
LINKS
CROSSREFS
Sequence in context: A111385 A084288 A083049 * A156778 A346752 A292955
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified July 14 20:49 EDT 2024. Contains 374323 sequences. (Running on oeis4.)