cp's OEIS Frontend

A003371 Numbers that are the sum of 4 positive 7th powers.

%I A003371 #31 May 25 2022 10:49:04
%S A003371 4,131,258,385,512,2190,2317,2444,2571,4376,4503,4630,6562,6689,8748,
%T A003371 16387,16514,16641,16768,18573,18700,18827,20759,20886,22945,32770,
%U A003371 32897,33024,34956,35083,37142,49153,49280,51339,65536,78128,78255,78382,78509
%N A003371 Numbers that are the sum of 4 positive 7th powers.
%C A003371 As the order of addition doesn't matter we can assume terms are in nondecreasing order. - _David A. Corneth_, Aug 01 2020
%H A003371 David A. Corneth, <a href="/A003371/b003371.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from Vincenzo Librandi)
%e A003371 16768 is in the sequence as 16768 = 2^7 + 2^7 + 2^7 + 4^7;
%e A003371 18700 is in the sequence as 18700 = 1^7 + 2^7 + 3^7 + 4^7;
%e A003371 65536 is in the sequence as 65536 = 4^7 + 4^7 + 4^7 + 4^7.
%Y A003371 A###### (x, y): Numbers that are the form of x nonzero y-th powers.
%Y A003371 Cf. A000404 (2, 2), A000408 (3, 2), A000414 (4, 2), A003072 (3, 3), A003325 (3, 2), A003327 (4, 3), A003328 (5, 3), A003329 (6, 3), A003330 (7, 3), A003331 (8, 3), A003332 (9, 3), A003333 (10, 3), A003334 (11, 3), A003335 (12, 3), A003336 (2, 4), A003337 (3, 4), A003338 (4, 4), A003339 (5, 4), A003340 (6, 4), A003341 (7, 4), A003342 (8, 4), A003343 (9, 4), A003344 (10, 4), A003345 (11, 4), A003346 (12, 4), A003347 (2, 5), A003348 (3, 5), A003349 (4, 5), A003350 (5, 5), A003351 (6, 5), A003352 (7, 5), A003353 (8, 5), A003354 (9, 5), A003355 (10, 5), A003356 (11, 5), A003357 (12, 5), A003358 (2, 6), A003359 (3, 6), A003360 (4, 6), A003361 (5, 6), A003362 (6, 6), A003363 (7, 6), A003364 (8, 6), A003365 (9, 6), A003366 (10, 6), A003367 (11, 6), A003368 (12, 6), A003369 (2, 7), A003370 (3, 7), A003371 (4, 7), A003372 (5, 7), A003373 (6, 7), A003374 (7, 7), A003375 (8, 7), A003376 (9, 7), A003377 (10, 7), A003378 (11, 7), A003379 (12, 7), A003380 (2, 8), A003381 (3, 8), A003382 (4, 8), A003383 (5, 8), A003384 (6, 8), A003385 (7, 8), A003387 (9, 8), A003388 (10, 8), A003389 (11, 8), A003390 (12, 8), A003391 (2, 9), A003392 (3, 9), A003393 (4, 9), A003394 (5, 9), A003395 (6, 9), A003396 (7, 9), A003397 (8, 9), A003398 (9, 9), A003399 (10, 9), A004800 (11, 9), A004801 (12, 9), A004802 (2, 10), A004803 (3, 10), A004804 (4, 10), A004805 (5, 10), A004806 (6, 10), A004807 (7, 10), A004808 (8, 10), A004809 (9, 10), A004810 (10, 10), A004811 (11, 10), A004812 (12, 10), A004813 (2, 11), A004814 (3, 11), A004815 (4, 11), A004816 (5, 11), A004817 (6, 11), A004818 (7, 11), A004819 (8, 11), A004820 (9, 11), A004821 (10, 11), A004822 (11, 11), A004823 (12, 11), A047700 (5, 2).
%K A003371 nonn,easy
%O A003371 1,1
%A A003371 _N. J. A. Sloane_
%E A003371 Incorrect program removed by _David A. Corneth_, Aug 01 2020