cp's OEIS Frontend

A317537 The n-th positive integer that has exactly n representations of the form 1 + p1 * (1 + p2* ... * (1 + p_j)...), where [p1, ..., p_j] is a (possibly empty) list of distinct primes.

%I A317537 #8 Jul 30 2018 19:29:10
%S A317537 1,29,91,426,1002,2283,3979,5886,10861,17116,20749,35106,44031,60919,
%T A317537 67453,108655,142429,197107,232625,303317,352093,432517,542935,642520,
%U A317537 839938,988791,1050505,1208559,1612876,1753324,2129203,2391496,2735890,3141916,3593278
%N A317537 The n-th positive integer that has exactly n representations of the form 1 + p1 * (1 + p2* ... * (1 + p_j)...), where [p1, ..., p_j] is a (possibly empty) list of distinct primes.
%F A317537 a(n) = A317390(n,n).
%e A317537 a(1) = 1: 1.
%e A317537 a(2) = 29: 1 + 2 * (1 + 13) = 1 + 7 * (1 + 3) = 29.
%e A317537 a(3) = 91: 1 + 2 * (1 + 11 * (1 + 3)) = 1 + 3 * (1 + 29) = 1 + 5 * (1 + 17) = 91.
%Y A317537 A diagonal of A317390.
%Y A317537 Cf. A317385.
%K A317537 nonn
%O A317537 1,2
%A A317537 _Alois P. Heinz_, Jul 30 2018