Seventh partial sums of sixth powers (A001014).

Terms

a(0) =1a(1) =71a(2) =1205a(3) =11075a(4) =70295a(5) =345857a(6) =1409387a(7) =4962365a(8) =15539750a(9) =44192010a(10) =115917118a(11) =283828498a(12) =654885730a(13) =1434717550a(14) =3002927770a(15) =6035661334a(16) =11699568079a(17) =21951176425a(18) =39988722875a(19) =70920437325a(20) =122735050305