Triangle in which n-th row contains all possible products of n-1 of the first n primes in descending order.
A258566
Triangle in which n-th row contains all possible products of n-1 of the first n primes in descending order.
Terms
- a(0) =1a(1) =3a(2) =2a(3) =15a(4) =10a(5) =6a(6) =105a(7) =70a(8) =42a(9) =30a(10) =1155a(11) =770a(12) =462a(13) =330a(14) =210a(15) =15015a(16) =10010a(17) =6006a(18) =4290a(19) =2730a(20) =2310a(21) =255255a(22) =170170a(23) =102102a(24) =72930a(25) =46410a(26) =39270a(27) =30030a(28) =4849845a(29) =3233230
External references
- oeis: A258566