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A278796 as a simple table

na(n)
1456
2468496
3263134490
4118098679534
544796204800108
614688350983557860
74251350673984802232
81107217648453587546275
9263642550140680566002158
1058107335402584370952018686
1111961631714090690343312623434

[456,468496,263134490,118098679534,44796204800108,
 14688350983557860,4251350673984802232,
 1107217648453587546275,263642550140680566002158,
 58107335402584370952018686,
 11961631714090690343312623434]