A075356 Sum of terms in n-th group in A075352.

1, 2, 7, 11, 24, 33, 58, 74, 115, 140, 201, 237, 273, 364, 413, 532, 596, 747, 828, 1015, 1115, 1342, 1463, 1734, 1878, 2022, 2353, 2522, 2905, 3101, 3540, 3765, 4264, 4520, 5083, 5372, 6003, 6327, 7030, 7391, 7752, 8550, 8950, 9828, 10269, 11231, 11715

Offset: 1

Author

Amarnath Murthy, Sep 19 2002

Keywords

• nonn

Crossrefs

Cf. A075352, A075353, A075354, A075355.

Formula

a(n) = A075355(n)*(A075354(n)+A075353(n))/2. - David Wasserman, Jan 16 2005

Extensions

More terms from David Wasserman, Jan 16 2005