A215909 The number of distinct possible dimensions of unital *-subalgebras of the n X n complex matrices.

1, 3, 5, 9, 13, 18, 25, 34, 42, 54, 66, 78, 94, 110, 126, 147, 168, 189, 214, 239, 267, 294, 326, 357, 390, 426, 462, 503, 542, 584, 628, 671, 717, 766, 819, 869, 924, 979, 1035, 1093, 1154, 1214, 1280, 1345, 1413, 1482, 1553, 1625, 1699, 1774, 1850, 1930

Offset: 1

Author

Nathaniel Johnston, Aug 26 2012

Keywords

• nonn

Comments

Also the number of terms in the n-th row of A215905.

A006171 is an upper bound of this sequence.

Crossrefs

Cf. A215905.