login
A368567
Number of Young tableaux of shape [n, floor(n/2)].
4
1, 1, 2, 3, 9, 14, 48, 75, 275, 429, 1638, 2548, 9996, 15504, 62016, 95931, 389367, 600875, 2466750, 3798795, 15737865, 24192090, 100975680, 154969620, 650872404, 997490844, 4211628008, 6446369400, 27341497800, 41802112192, 177996090624, 271861216539, 1161588834303, 1772528290407, 7596549816030, 11582393855305
OFFSET
0,3
FORMULA
a(2*n) = A174687(n/2), a(2*n+1) = A026004(n).
CROSSREFS
Cf. A174687 (shape [2*n, n]), A026004 (shape [2*n+1, n]).
Sequence in context: A237254 A026307 A139816 * A083303 A245594 A078610
KEYWORD
nonn
AUTHOR
Joerg Arndt, Dec 30 2023
STATUS
approved