cp's OEIS Frontend

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.

A345188 Numbers that are the sum of five third powers in exactly ten ways.

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%I A345188 #10 Jul 31 2021 23:16:57
%S A345188 5860,6588,6651,6859,6947,8056,8289,8569,8758,9045,9099,9227,9414,
%T A345188 9612,9829,10009,10277,10485,10522,10529,10800,10963,10970,11008,
%U A345188 11061,11089,11241,11385,11458,11656,11719,11782,11817,11845,11934,11990,12016,12060,12088
%N A345188 Numbers that are the sum of five third powers in exactly ten ways.
%C A345188 Differs from A345187 at term 8 because 8371 = 1^3 + 1^3 + 11^3 + 11^3 + 16^3  = 1^3 + 4^3 + 5^3 + 12^3 + 17^3  = 1^3 + 8^3 + 9^3 + 11^3 + 16^3  = 3^3 + 3^3 + 4^3 + 15^3 + 15^3  = 3^3 + 3^3 + 8^3 + 8^3 + 18^3  = 3^3 + 3^3 + 3^3 + 5^3 + 19^3  = 3^3 + 7^3 + 9^3 + 9^3 + 17^3  = 4^3 + 6^3 + 6^3 + 11^3 + 17^3  = 5^3 + 9^3 + 10^3 + 11^3 + 15^3  = 6^3 + 6^3 + 12^3 + 13^3 + 13^3  = 8^3 + 8^3 + 9^3 + 9^3 + 16^3.
%H A345188 David Consiglio, Jr., <a href="/A345188/b345188.txt">Table of n, a(n) for n = 1..10000</a>
%e A345188 6588 is a term because 6588 = 1^3 + 3^3 + 5^3 + 7^3 + 17^3  = 1^3 + 4^3 + 6^3 + 13^3 + 14^3  = 1^3 + 5^3 + 8^3 + 8^3 + 16^3  = 1^3 + 10^3 + 10^3 + 11^3 + 12^3  = 2^3 + 2^3 + 9^3 + 12^3 + 14^3  = 2^3 + 3^3 + 8^3 + 11^3 + 15^3  = 3^3 + 8^3 + 8^3 + 11^3 + 14^3  = 3^3 + 3^3 + 5^3 + 10^3 + 16^3  = 5^3 + 5^3 + 8^3 + 10^3 + 15^3  = 8^3 + 9^3 + 10^3 + 10^3 + 12^3.
%o A345188 (Python)
%o A345188 from itertools import combinations_with_replacement as cwr
%o A345188 from collections import defaultdict
%o A345188 keep = defaultdict(lambda: 0)
%o A345188 power_terms = [x**3 for x in range(1, 1000)]
%o A345188 for pos in cwr(power_terms, 5):
%o A345188     tot = sum(pos)
%o A345188     keep[tot] += 1
%o A345188 rets = sorted([k for k, v in keep.items() if v == 10])
%o A345188 for x in range(len(rets)):
%o A345188     print(rets[x])
%Y A345188 Cf. A294744, A341898, A345156, A345186, A345187, A345772.
%K A345188 nonn
%O A345188 1,1
%A A345188 _David Consiglio, Jr._, Jun 10 2021