a(n) = n^8*(n^7 + 1)/2.A170779a(n) = n^8*(n^7 + 1)/2.Terms a(0) =0a(1) =1a(2) =16512a(3) =7177734a(4) =536903680a(5) =15258984375a(6) =235093332096External referencesoeis: A170779