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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A371951 a(n) is the least number whose aliquot sequence begins with exactly n weird numbers (A006037), or -1 if no such numbers exists.

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%I A371951 #6 Apr 16 2024 14:03:31
%S A371951 1,70,97930,597730,77420770,459940810,11835050710
%N A371951 a(n) is the least number whose aliquot sequence begins with exactly n weird numbers (A006037), or -1 if no such numbers exists.
%C A371951 a(7) > 10^11, if it exists.
%H A371951 Wikipedia, <a href="https://en.wikipedia.org/wiki/Aliquot_sequence">Aliquot sequence</a>.
%H A371951 Wikipedia, <a href="https://en.wikipedia.org/wiki/Weird_number">Weird number</a>.
%e A371951 The iterations of A001065 over the terms a(1)..a(6):
%e A371951   n |        a(n) | Iterations
%e A371951   --+-------------+--------------------------------------------------------------
%e A371951   1 |          70 | 70
%e A371951   2 |       97930 | 97930 -> 103670
%e A371951   3 |      597730 | 597730 -> 632030 -> 668290
%e A371951   4 |    77420770 | 77420770 -> 82246430 -> 86946370 -> 92477630
%e A371951   5 |   459940810 | 459940810 -> 487175990 -> 515884810 -> 546184310 -> 582130570
%e A371951   6 | 11835050710 | 11835050710 -> 12515648810 -> 13235404630 -> 13991713610
%e A371951     |             |   -> 14797250230 -> 15649107530
%Y A371951 Cf. A001065, A006037, A371950.
%K A371951 nonn,hard,more
%O A371951 0,2
%A A371951 _Amiram Eldar_, Apr 14 2024