3,2
For n>5, a(n) = 1/6 * (n^3 - 6n^2 + 23n - 48).
Sequence in context: A047837 A047873 A036419 this_sequence A097589 A015631 A116686
Adjacent sequences: A054104 A054105 A054106 this_sequence A054108 A054109 A054110
nonn
Clark Kimberling (ck6(AT)evansville.edu)
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