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A053742
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Sum of odd numbers in range 10n to 10n+9.
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4
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25, 75, 125, 175, 225, 275, 325, 375, 425, 475, 525, 575, 625, 675, 725, 775, 825, 875, 925, 975, 1025, 1075, 1125, 1175, 1225, 1275, 1325, 1375, 1425, 1475, 1525, 1575, 1625, 1675, 1725, 1775, 1825, 1875, 1925, 1975, 2025, 2075, 2125, 2175, 2225, 2275
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Tanya Khovanova, Recursive Sequences
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FORMULA
| 25+50*n
a(n)=a(n-1)+50 [From Harvey P. Dale, Aug 11 2011]
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EXAMPLE
| 25 = 1+3+5+7+9; 75 = 11+13+15+17+19; ...
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MATHEMATICA
| Range[25, 2275, 50] (* or *) NestList[#+50&, 25, 50] (* From Harvey P. Dale, Aug 11 2011 *)
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PROG
| (MAGMA) [25+50*n: n in [0..50]]; // Vincenzo Librandi, Aug 12 2011
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CROSSREFS
| Cf. A053741, A053743.
Sequence in context: A044163 A044544 A045180 * A123296 A118610 A008852
Adjacent sequences: A053739 A053740 A053741 * A053743 A053744 A053745
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KEYWORD
| nonn,easy
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AUTHOR
| Odimar Fabeny (fabeny(AT)braznet.com.br), Feb 13 2000
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EXTENSIONS
| More terms from James A. Sellers (sellersj(AT)math.psu.edu), Feb 22 2000
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