A025539 a(n) = (Sum{1/C(i,j)})*LCM{C(i,j)}, 0 <= j <= i <= n.

1, 3, 11, 49, 130, 806, 957, 7723, 17438, 58154, 63886, 764858, 826222, 11530794, 12314319, 13092559, 27732718, 497636846, 523706646, 10443916834, 10935791938, 11426233362, 11915393030, 285278184586, 296478322266, 1538283113698

Offset

0,2

Links

Table of n, a(n) for n=0..25.

Crossrefs

Sequence in context: A105151 A111680 A095822 * A172440 A254536 A333514

Adjacent sequences: A025536 A025537 A025538 * A025540 A025541 A025542

Keyword

nonn

Author

Clark Kimberling

Status

approved