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A107255 a(n) = n^5 - 31*n + 31, with n*a(n) + n*( n - 1 )*31 = n^6. 0
1, 1, 181, 931, 3001, 7621, 16621, 32551, 58801, 99721, 160741, 248491, 370921, 537421, 758941, 1048111, 1419361, 1889041, 2475541, 3199411, 4083481, 5152981, 6435661, 7961911, 9764881, 11880601, 14348101, 17209531, 20510281, 24299101 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
EXAMPLE
a(2)=1, 1 + 63 = 2^6; a(3) = 181, 181 + 243 + 305 = 3^6; a(4) = 931, 931 + 993 + 1055 + 1117 = 4^6
CROSSREFS
Sequence in context: A142731 A229877 A067383 * A163442 A268520 A235975
KEYWORD
nonn
AUTHOR
Andras Erszegi (erszegi.andras(AT)chello.hu), May 14 2005
STATUS
approved

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Last modified March 28 16:12 EDT 2024. Contains 371254 sequences. (Running on oeis4.)