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Revision History for A256067 (Bold, blue-underlined text is an addition; faded, red-underlined text is a deletion.)

Showing entries 1-10 | older changes
Irregular table T(n,k): the number of partitions of n where the least common multiple of all parts equals k.
(history; published version)
#41 by Alois P. Heinz at Wed Aug 14 15:28:55 EDT 2019
STATUS

editing

approved

#40 by Alois P. Heinz at Wed Aug 14 15:28:52 EDT 2019
EXAMPLE

1 ;

1 ;

1 1;

1 1 1;

1 2 1 1;

1 2 1 1 1 1;

1 3 2 2 1 2;

1 3 2 2 1 3 1 0 0 1 0 1;

...

STATUS

approved

editing

#39 by Alois P. Heinz at Mon Jun 22 11:31:36 EDT 2015
STATUS

reviewed

approved

#38 by Wesley Ivan Hurt at Mon Jun 22 11:25:32 EDT 2015
STATUS

proposed

reviewed

#37 by Jean-François Alcover at Mon Jun 22 11:11:44 EDT 2015
STATUS

editing

proposed

#36 by Jean-François Alcover at Mon Jun 22 11:11:33 EDT 2015
MATHEMATICA

b[n_, i_] := b[n, i] = If[n == 0 || i == 1, x, b[n, i-1] + Function[{p}, Sum[ Coefficient[p, x, t]*x^LCM[t, i], {t, 1, Exponent[p, x]}]][Sum[b[n-i*j, i-1], {j, 1, n/i}]]]; T[n_] := Function[{p}, Table[Coefficient[p, x, i], {i, 1, Exponent[p, x]}]][b[n, n]]; Table[T[n], {n, 0, 12}] // Flatten (* Jean-François Alcover, Jun 22 2015, after Alois P. Heinz *)

STATUS

approved

editing

#35 by Alois P. Heinz at Sun May 31 03:27:00 EDT 2015
STATUS

editing

approved

#34 by Alois P. Heinz at Sun May 31 03:24:05 EDT 2015
CROSSREFS

Cf. A000041 (row sums), A000793 (row lengths), A213952, A074761 (diagonal), A074752 (6th column), A008642 (4th column), A002266 (5th column), A002264 (3rd column), A132270 (7th column), A008643 (8th column), A008649 (9th column), A258470 (10th column).

STATUS

approved

editing

#33 by Alois P. Heinz at Sun Mar 29 17:56:47 EDT 2015
STATUS

editing

approved

#32 by Alois P. Heinz at Sun Mar 29 17:56:42 EDT 2015
CROSSREFS

Cf. A009490 (number of nonzero terms of rows), A074064 (last elements of rows), A168532 (the same for gcd), A181844 (Sum k*T(n,k)).

STATUS

approved

editing