[go: up one dir, main page]

login

A001405 as a simple table

na(n)
01
11
22
33
46
510
620
735
870
9126
10252
11462
12924
131716
143432
156435
1612870
1724310
1848620
1992378
20184756
21352716
22705432
231352078
242704156
255200300
2610400600
2720058300
2840116600
2977558760
30155117520
31300540195
32601080390
331166803110

[1,1,2,3,6,10,20,35,70,126,252,462,924,1716,3432,
 6435,12870,24310,48620,92378,184756,352716,705432,
 1352078,2704156,5200300,10400600,20058300,
 40116600,77558760,155117520,300540195,601080390,
 1166803110]