a(n) = product of first k composites, with the i-th composite raised to the d-th power, where k = A055642(n) and d is the i-th digit of n.
A270142
a(n) = product of first k composites, with the i-th composite raised to the d-th power, where k = A055642(n) and d is the i-th digit of n.
Terms
- a(0) =4a(1) =16a(2) =64a(3) =256a(4) =1024a(5) =4096a(6) =16384a(7) =65536a(8) =262144a(9) =4a(10) =24a(11) =144a(12) =864a(13) =5184a(14) =31104a(15) =186624a(16) =1119744a(17) =6718464a(18) =40310784a(19) =16a(20) =96a(21) =576a(22) =3456a(23) =20736a(24) =124416a(25) =746496a(26) =4478976a(27) =26873856a(28) =161243136a(29) =64
External references
- oeis: A270142