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 A205136 Ordered differences of distinct pentagonal numbers. 2
 4, 11, 7, 21, 17, 10, 34, 30, 23, 13, 50, 46, 39, 29, 16, 69, 65, 58, 48, 35, 19, 91, 87, 80, 70, 57, 41, 22, 116, 112, 105, 95, 82, 66, 47, 25, 144, 140, 133, 123, 110, 94, 75, 53, 28, 175, 171, 164, 154, 141, 125, 106, 84, 59, 31, 209, 205, 198, 188, 175 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS For a guide to related sequences, see A204892. LINKS EXAMPLE a(1)=s(2)-s(1)=5-1=4 a(2)=s(3)-s(1)=12-1=11 a(3)=s(3)-s(2)=12-5=7 a(4)=s(4)-s(1)=22-1=21 a(5)=s(4)-s(2)=22-5=17 MATHEMATICA (See the program at A205138.) CROSSREFS Cf. A205138, A204892. Sequence in context: A269742 A151873 A354274 * A096735 A211458 A222284 Adjacent sequences:  A205133 A205134 A205135 * A205137 A205138 A205139 KEYWORD nonn AUTHOR Clark Kimberling, Jan 25 2012 STATUS approved

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Last modified August 16 05:55 EDT 2022. Contains 356160 sequences. (Running on oeis4.)