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A078058 as a simple table

na(n)
01
1-3
27
3-18
446
5-117
6298
7-759
81933
9-4923
1012538
11-31932
1281325
13-207120
14527497
15-1343439
163421495
17-8713926
1822192786
19-56520993
20143948698
21-366611175
22933692041
23-2377943955
246056191126
25-15424018248
2639282171577
27-100044552528
28254795294881
29-648917313867

[1,-3,7,-18,46,-117,298,-759,1933,-4923,12538,
 -31932,81325,-207120,527497,-1343439,3421495,
 -8713926,22192786,-56520993,143948698,-366611175,
 933692041,-2377943955,6056191126,-15424018248,
 39282171577,-100044552528,254795294881,
 -648917313867]