login
a(n) is the least positive integer that can be expressed as the sum of one or more consecutive prime-indexed primes in exactly n ways.
0

%I #9 Mar 13 2023 06:15:53

%S 1,3,59,10079,744666,163710521

%N a(n) is the least positive integer that can be expressed as the sum of one or more consecutive prime-indexed primes in exactly n ways.

%e For n = 2: 59 = prime(prime(7)) = prime(prime(3)) + prime(prime(4)) + prime(prime(5)).

%Y Cf. A006450, A054859.

%K nonn,hard,more

%O 0,2

%A _Ilya Gutkovskiy_, Feb 23 2023

%E a(5) from _Michael S. Branicky_, Feb 23 2023