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Search: id:A022289
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| 0, 16, 63, 141, 250, 390, 561, 763, 996, 1260, 1555, 1881, 2238, 2626, 3045, 3495, 3976, 4488, 5031, 5605, 6210, 6846, 7513, 8211, 8940, 9700, 10491, 11313, 12166, 13050, 13965, 14911, 15888, 16896, 17935
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OFFSET
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0,2
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FORMULA
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a(n)=31*n+a(n-1)-46 (with a(1)=0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 14 2009]
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EXAMPLE
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For n=2, a(2)=31*2+0-46=16; n=3, a(3)=31*3+16-46=63; n=4, a(4)=31*4+63-46=141 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 14 2009]
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CROSSREFS
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Sequence in context: A007831 A118254 A066391 this_sequence A143860 A100176 A060091
Adjacent sequences: A022286 A022287 A022288 this_sequence A022290 A022291 A022292
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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