A095834 Triangle read by rows: T(n,k) = (n-k)*n, n>=1, 1<=k<=n.

0, 2, 0, 6, 3, 0, 12, 8, 4, 0, 20, 15, 10, 5, 0, 30, 24, 18, 12, 6, 0, 42, 35, 28, 21, 14, 7, 0, 56, 48, 40, 32, 24, 16, 8, 0, 72, 63, 54, 45, 36, 27, 18, 9, 0, 90, 80, 70, 60, 50, 40, 30, 20, 10, 0, 110, 99, 88, 77, 66, 55, 44, 33, 22, 11, 0, 132, 120, 108, 96, 84, 72, 60, 48, 36, 24

Offset

1,2

Links

Table of n, a(n) for n=1..76.

Example

 0
 2  0
 6  3  0
12  8  4  0
20 15 10  5  0
30 24 18 12  6  0
42 35 28 21 14  7  0
56 48 40 32 24 16  8  0

Crossrefs

Cf. A006002 (row sums).

Sequence in context: A054877 A269795 A372016 * A106828 A055302 A055349

Adjacent sequences: A095831 A095832 A095833 * A095835 A095836 A095837

Keyword

easy,nonn,tabl

Author

Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 10 2004

Status

approved