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.
%I A247358 #15 Jan 24 2022 04:35:06 %S A247358 1,1,2,1,3,4,1,4,8,9,1,5,16,16,27,1,6,25,32,64,81,1,7,36,64,125,243, %T A247358 256,1,8,49,128,216,625,729,1024,1,9,64,256,343,1296,2187,3125,4096,1, %U A247358 10,81,512,512,2401,6561,7776,15625,16384,1,11,100,729,1024,4096,16807,19683,46656,65536,78125 %N A247358 Triangle read by rows: n-th row contains powers b^e with b + e = n + 1 in natural order. %C A247358 Sorted rows of triangle A051129. %H A247358 Reinhard Zumkeller, <a href="/A247358/b247358.txt">Rows n = 1..125 of triangle, flattened</a> %e A247358 . 1 | 1 | 1^1 %e A247358 . 2 | 1 2 | 1^2 2^1 %e A247358 . 3 | 1 3 4 | 1^3 3^1 2^2 %e A247358 . 4 | 1 4 8 9 | 1^4 4^1 2^3 3^2 %e A247358 . 5 | 1 5 16 16 27 | 1^5 5^1 2^4 4^2 3^3 %e A247358 . 6 | 1 6 25 32 64 81 | 1^6 6^1 5^2 2^5 4^3 3^4 %e A247358 . 7 | 1 7 36 64 125 243 256 | 1^7 7^1 6^2 2^6 5^3 3^5 4^4 %e A247358 . 8 | 1 8 49 128 216 625 729 1024 | 1^8 8^1 7^2 2^7 6^3 5^4 3^6 4^5 . %t A247358 Table[Table[k^(n-k+1), {k, 1, n}] // Sort, {n, 1, 11}] // Flatten (* _Jean-François Alcover_, Nov 18 2019 *) %o A247358 (Haskell) %o A247358 import Data.List (sort) %o A247358 a247358 n k = a247358_tabl !! (n-1) !! (k-1) %o A247358 a247358_row n = a247358_tabl !! (n-1) %o A247358 a247358_tabl = map sort a051129_tabl %o A247358 (Python) %o A247358 from itertools import chain %o A247358 A247358_list = list(chain.from_iterable(sorted((b+1)**(n-b) for b in range(n)) for n in range(1,8))) # _Chai Wah Wu_, Sep 14 2014 %o A247358 (PARI) row(n) = vecsort(vector(n, k, k^(n-k+1))); \\ _Michel Marcus_, Jan 24 2022 %Y A247358 Cf. A051129, A003101 (row sums), A247363 (central terms), A003320 (row maxima). %K A247358 nonn,tabl %O A247358 1,3 %A A247358 _Reinhard Zumkeller_, Sep 14 2014