OFFSET
4,1
COMMENTS
LINKS
Rémy Sigrist, Table of n, a(n) for n = 4..10120 (rows for n = 4..163, flattened)
Rémy Sigrist, Logarithmic scatterplot of the first 35000 terms
EXAMPLE
As an irregular table, the first rows are:
4: 6;
5: 10;
6: 90;
7: 350, 140;
8: 966, 1050, 266, 28;
9: 7770, 2646, 462, 36;
10: 9330, 5880, 750;
11: 145750, 246730, 11880;
12: 86526, 1379400, 1323652, 627396, 66;
13: 2532530, 9321312, 5715424, 1899612, 359502, 78;
14: 788970, 49329280, 20912320, 5135130, 752752, 66066;
...
PROG
(PARI) row(n) = select(v -> v%2==0, vector(n, k, stirling(n, k, 2)))
CROSSREFS
KEYWORD
AUTHOR
Rémy Sigrist, Oct 27 2021
STATUS
approved