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A334516
Number of 3 X n whirlpool permutations (see A334518).
3
6, 84, 5904, 1064304, 402671760, 273315542400
OFFSET
1,1
LINKS
CROSSREFS
Cf. A000142 (1 X n), A261683 (2 X n), A334517 (n X n), A334518 and A334519 (m X n).
Sequence in context: A030031 A244961 A293455 * A331014 A295229 A330849
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, May 06 2020
STATUS
approved