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 A093844 n-th row of the following triangle contains n terms of an arithmetic progression with the first term 1 such that the sum is the least possible n-th power. Sequence contains the leading diagonal. 2
 1, 3, 17, 7, 1249, 15551, 235297, 419903, 86093441, 1999999999, 51874849201, 1486016741375, 46596170244961, 1587429546508287, 58385852050781249, 8191, 97322383751333736961, 4371823119477393063935, 208254700595822483065681 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS 1 1 3 1 9 17 1 3 5 7 1 313 625 937 1249 1 3111 6221 9331 12441 15551 LINKS PROG (PARI) {a(n)=local(k); k=2; while(2*Mod(k, n)^n!=0||2*(Mod(k, n-1)^n-1)!=0, k++); 2*k^n/n-1} (Alekseyev) CROSSREFS Cf. A093460, A093845. Cf. A093845, A110500. Sequence in context: A195421 A140446 A124689 * A273211 A273273 A273249 Adjacent sequences: A093841 A093842 A093843 * A093845 A093846 A093847 KEYWORD nonn AUTHOR Amarnath Murthy, Apr 18 2004 EXTENSIONS More terms from Max Alekseyev, Jul 23 2005 STATUS approved

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Last modified November 28 10:02 EST 2022. Contains 358411 sequences. (Running on oeis4.)