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A038476 Sums of 4 distinct powers of 5. 4

%I #11 Jul 13 2022 05:57:37

%S 156,656,756,776,780,3156,3256,3276,3280,3756,3776,3780,3876,3880,

%T 3900,15656,15756,15776,15780,16256,16276,16280,16376,16380,16400,

%U 18756,18776,18780,18876,18880,18900,19376,19380,19400,19500,78156,78256,78276,78280,78756,78776,78780

%N Sums of 4 distinct powers of 5.

%H Amiram Eldar, <a href="/A038476/b038476.txt">Table of n, a(n) for n = 1..10000</a>

%t With[{upto=80000},Select[Total/@Subsets[5^Range[0,Floor[Surd[upto-31,5]]],{4}],#<=upto&]]//Union (* _Harvey P. Dale_, Mar 13 2019 *)

%Y Base 5 interpretation of A038446.

%Y Cf. A000351, A038474, A038475, A038477.

%K nonn,easy

%O 1,1

%A _Olivier GĂ©rard_

%E Offset corrected by _Amiram Eldar_, Jul 13 2022

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)