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A374195
Row sums of A373917.
2
0, 0, 3, 4, 0, 12, 21, 24, 36, 0, 55, 60, 78, 84, 75, 112, 136, 144, 171, 100, 210, 220, 253, 264, 250, 312, 351, 364, 406, 300, 465, 480, 528, 544, 525, 612, 666, 684, 741, 600, 820, 840, 903, 924, 900, 1012, 1081, 1104, 1176, 1000, 1275, 1300, 1378, 1404, 1375
OFFSET
1,3
FORMULA
a(n) = Sum_{k=1..n-1} (k*10 mod n).
MATHEMATICA
Table[Total[Mod[Range[10, 10*(n-1), 10], n]], {n, 100}]
CROSSREFS
Cf. A373917.
Sequence in context: A213280 A056862 A113035 * A099447 A078067 A192442
KEYWORD
nonn,easy,base
AUTHOR
Paolo Xausa, Jun 30 2024
STATUS
approved