A374195 Row sums of A373917.

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

Author

Paolo Xausa, Jun 30 2024

Keywords

• nonn
• easy
• base

Links

• Paolo Xausa, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A373917.

Programs

Mathematica

Table[Total[Mod[Range[10, 10*(n-1), 10], n]], {n, 100}]

Formula

a(n) = Sum_{k=1..n-1} (k*10 mod n).