A181416 Irregular table T(n,k) = n*A178883(n,k) read by rows.
1, 2, 4, 6, 12, 18, 24, 32, 16, 72, 96, 120, 120, 120, 180, 180, 480, 600, 720, 576, 576, 288, 648, 1296, 216, 1152, 1728, 3600, 4320, 5040, 3360, 3360, 3360, 3024, 6048, 3024, 3024, 4032, 12096, 4032, 8400, 16800, 30240, 35280, 40320
Offset: 1
Examples
In row n=3 the products are (3,3,3) times (2,4,6) yielding (6,12,18) which adds to 36, the third Lah number. The table starts in row n=1 with row lengths A000041(n) as: 1; 2,4; 6,12,18; 24,32,16,72,96; 120,120,120,180,180,480,600;
Crossrefs
Cf. A051683.
Comments