A325593 Numbers having at least three representations as multinomial coefficients M(n;lambda), where lambda is a partition of n.

1, 6, 20, 30, 56, 60, 90, 105, 120, 210, 252, 360, 420, 462, 495, 504, 560, 630, 720, 756, 840, 990, 1260, 1320, 1365, 1540, 1680, 1716, 1980, 2520, 2970, 3003, 3360, 3960, 4290, 4620, 5040, 5460, 6006, 6435, 7140, 7560, 7920, 8190, 9240, 10080, 10296, 10626

Offset

1,2

Comments

Numbers occurring at least three times in the triangle A036038.

Links

Alois P. Heinz, Table of n, a(n) for n = 1..505

Example

1 is in the sequence because M(0;0) = M(1;1) = M(2;2) = M(3;3) = ... = 1.
6 is in the sequence because M(6;5,1) = M(4;2,2) = M(3;1,1,1) = 6.
56 is in the sequence because M(56;55,1) = M(8;5,3) = M(8;6,1,1) = 56.

Crossrefs

Cf. A036038, A325472, A325903.

Sequence in context: A308710 A242341 A140738 * A226363 A253906 A031005

Adjacent sequences: A325590 A325591 A325592 * A325594 A325595 A325596

Keyword

nonn

Author

Alois P. Heinz, Sep 06 2019

Status

approved