[seqfan] counting matrices by column rises

Neil Sloane njasloane at gmail.com
Sun May 27 20:29:37 CEST 2012

Dear SeqFans, I just discovered this interesting paper:
Abramson, Morton; Promislow, David. Enumeration of arrays by column rises.
J. Combinatorial Theory Ser. A 24 (1978), no. 2, 247--250. MR0469773 (57
which led me to add A212805 and A212806 - the latter needs more terms. Ron?

Dear Friends, I have now retired from AT&T. New coordinates:

Neil J. A. Sloane, President, OEIS Foundation
11 South Adelaide Avenue, Highland Park, NJ 08904, USA
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com

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