A075640 Sums of groups in A075639.

1, 9, 21, 70, 185, 354, 625, 1012, 1555, 2250, 3125, 4284, 5627, 7252, 9205, 11378, 14075, 17122, 20385, 24386, 28805, 33582, 38741, 45026, 51641, 58952, 66609, 75384, 84217, 95020, 106021, 117168, 129669, 143050, 157873, 173506, 189683

Offset

1,2

Links

Table of n, a(n) for n=1..37.

Crossrefs

Cf. A075639, A075641, A075642.

Sequence in context: A193276 A173084 A137340 * A147480 A146396 A146681

Adjacent sequences: A075637 A075638 A075639 * A075641 A075642 A075643

Keyword

nonn

Author

Amarnath Murthy, Sep 30 2002

Extensions

More terms from David Wasserman, Jan 22 2005

Status

approved