0,3
a(n) = 1/10*(n-(n mod 10))*(729*n^2-14879*n+75971)+ (n mod 10)
Cf. A038178.
Sequence in context: A193757 A038178 A023106 * A098766 A032799 A160343
Adjacent sequences: A135477 A135478 A135479 * A135481 A135482 A135483
nonn
Rolf Pleisch (r_pleisch(AT)gmx.ch), Feb 06 2008