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A328921
Triangle read by rows: T(n,k) = number of vertex labeled connected Goldstone diagrams with n interactions and k external potentials.
5
1, 2, 1, 20, 8, 1, 592, 240, 36, 2, 33888, 14208, 2400, 192, 6, 3134208, 1355520, 248640, 24000, 1200, 24, 423974400, 188052480, 36599040, 3978240, 252000, 8640, 120, 78722795520, 35613849600, 7240020480, 853977600, 62657280, 2822400, 70560, 720, 19193652817920, 8816953098240, 1851920179200
OFFSET
0,2
FORMULA
T(n,k) + A328922(n,k) = A328826(n,k).
EXAMPLE
1;
2 1;
20 8 1;
592 240 36 2;
33888 14208 2400 192 6;
3134208 1355520 248640 24000 1200 24;
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. J. Mathar, Oct 31 2019
STATUS
approved