login

A261386 as a simple table

na(n)
01
14
216
356
4176
5520
61456
73896
810048
925100
1060960
11144440
12334752
13760456
141696464
153722224
168043040
1717135624
1836031104
1974840568
20153680928
21312198160
22627828272
231250540024
242468443296
254830809868
269377190336
2718061370288
2834531009760
2965552873736

[1,4,16,56,176,520,1456,3896,10048,25100,60960,
 144440,334752,760456,1696464,3722224,8043040,
 17135624,36031104,74840568,153680928,312198160,
 627828272,1250540024,2468443296,4830809868,
 9377190336,18061370288,34531009760,65552873736]