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A015657
Number of ordered 5-tuples of integers from [ 2,n ] with no common factors among triples.
0
0, 0, 0, 8, 10, 51, 83, 165, 216, 531, 637, 1284, 1607, 2159, 2756, 4705, 5353, 8462, 9829, 12378, 14514, 21227, 23433, 31079, 35600, 43705, 49266, 66390, 70849, 93223, 104603, 122139, 135745, 162248, 173565, 218847, 240639, 275249, 297212
OFFSET
2,4
CROSSREFS
Sequence in context: A218464 A060809 A112547 * A167303 A025634 A038288
KEYWORD
nonn
STATUS
approved