Numbers n such that for some k and a_1,a_2,...,a_k the concatenation of the a_i is equal to n and their product is equal to pi(n).
A097221
Numbers n such that for some k and a_1,a_2,...,a_k the concatenation of the a_i is equal to n and their product is equal to pi(n).
Terms
- a(0) =16a(1) =17a(2) =63a(3) =73a(4) =132a(5) =224a(6) =322a(7) =342a(8) =352a(9) =362a(10) =364a(11) =437a(12) =545a(13) =573a(14) =619a(15) =963a(16) =1017a(17) =1117a(18) =1196a(19) =1516a(20) =2163a(21) =2215a(22) =2335a(23) =2435a(24) =2537a(25) =3277a(26) =3514a(27) =3714a(28) =4072a(29) =4513
External references
- oeis: A097221