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.

A038476 Sums of 4 distinct powers of 5.

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%I A038476 #11 Jul 13 2022 05:57:37
%S A038476 156,656,756,776,780,3156,3256,3276,3280,3756,3776,3780,3876,3880,
%T A038476 3900,15656,15756,15776,15780,16256,16276,16280,16376,16380,16400,
%U A038476 18756,18776,18780,18876,18880,18900,19376,19380,19400,19500,78156,78256,78276,78280,78756,78776,78780
%N A038476 Sums of 4 distinct powers of 5.
%H A038476 Amiram Eldar, <a href="/A038476/b038476.txt">Table of n, a(n) for n = 1..10000</a>
%t A038476 With[{upto=80000},Select[Total/@Subsets[5^Range[0,Floor[Surd[upto-31,5]]],{4}],#<=upto&]]//Union (* _Harvey P. Dale_, Mar 13 2019 *)
%Y A038476 Base 5 interpretation of A038446.
%Y A038476 Cf. A000351, A038474, A038475, A038477.
%K A038476 nonn,easy
%O A038476 1,1
%A A038476 _Olivier Gérard_
%E A038476 Offset corrected by _Amiram Eldar_, Jul 13 2022