A049792 a(n)=Sum{[ n/[ n/k ] ]: k=1,2,...,n}=T(n,n), array T as in A049790.

1, 3, 7, 11, 18, 24, 34, 43, 55, 66, 82, 94, 113, 129, 150, 167, 192, 211, 239, 261, 290, 315, 349, 374, 410, 440, 478, 509, 552, 583, 629, 665, 711, 750, 802, 838, 893, 937, 992, 1036, 1097, 1141, 1205, 1255, 1317, 1370, 1440