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A169617
List of numbers k such that k=6*m-1=r*j, r>=j and n>=q where r=6*n-1 or r=6*n+1 and j=6*q-1 or j=6*q+1.
0
5, 35, 11, 65, 77, 143, 17, 95, 119, 209, 221, 323, 23, 125, 161, 275, 299, 425, 437, 575, 29, 155, 203, 341, 377, 527, 589, 713, 725, 879, 35, 185, 245, 407, 455, 629, 665, 851, 875, 1073, 1085, 1295, 41, 215, 287, 473, 533, 731, 779, 989, 1025, 1247, 1271, 1505
OFFSET
1,1
EXAMPLE
Triangle begins for n-th rows: 5*1 7*5 11*1 13*5 11*7 13*11 17*1 19*5 17*7 19*11 17*13 19*17 23*1 25*5 23*7 25*11 23*13 25*17 23*19 25*23 or 5 35 11 65 77 143 17 95 118 209 221 323 23 125 161 275 299 425 437 575
CROSSREFS
Cf. A007310.
Sequence in context: A144995 A173865 A285019 * A174130 A095865 A199359
KEYWORD
nonn,tabl
AUTHOR
STATUS
approved