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A012557 as a simple table

na(n)
02
1-4
2350
3-11240
41461658
5-167279660
635689423926
7-8594866078032
82902777731046578
9-1163594305273709524
10584328120817240344206
11-346295976826690961613880
12244030359200524004600252746

[2,-4,350,-11240,1461658,-167279660,35689423926,
 -8594866078032,2902777731046578,
 -1163594305273709524,584328120817240344206,
 -346295976826690961613880,
 244030359200524004600252746]

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Last modified January 20 17:55 EST 2025. Contains 380077 sequences.
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