login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A249074 as a simple table

na(n)
01
14
21
36
44
51
632
714
84
91
1060
1172
1224
134
141
15384
16228
17120
1836
194
201
21840
221392
23564
24176
2550
264
271
286144
294488
303312
311140
32240
3366
344
351
3615120
3731200
3814640
396480
402040
41312
4284
434
441
45122880
46104880
4797440
4837440
4911280
503360
51392
52104
534
541
55332640

[1,4,1,6,4,1,32,14,4,1,60,72,24,4,1,384,228,120,
 36,4,1,840,1392,564,176,50,4,1,6144,4488,3312,
 1140,240,66,4,1,15120,31200,14640,6480,2040,312,
 84,4,1,122880,104880,97440,37440,11280,3360,392,
 104,4,1,332640]