1,3

CRC Handbook of Combinatorial Designs, 1996, p. 327.

Mathon, Rudolf; Bounds for equidistant permutation arrays of index one. Combinatorial Mathematics: Proceedings of the Third International Conference (New York, 1985), 303-309, Ann. New York Acad. Sci., 555, New York Acad. Sci., New York, 1989.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Cf. A013578.

Sequence in context: A123090 A129281 A022426 this_sequence A162404 A084760 A103746

Adjacent sequences: A005674 A005675 A005676 this_sequence A005678 A005679 A005680

nonn,hard,nice

N. J. A. Sloane (njas(AT)research.att.com).