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A053742 Sum of odd numbers in range 10n to 10n+9. +0
4
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; listen)
OFFSET

0,1

LINKS

Tanya Khovanova, Recursive Sequences

FORMULA

25+50*n

EXAMPLE

25 = 1+3+5+7+9; 75 = 11+13+15+17+19; ...

CROSSREFS

Cf. A053741, A053743.

Sequence in context: A044163 A044544 A045180 this_sequence A123296 A118610 A008852

Adjacent sequences: A053739 A053740 A053741 this_sequence A053743 A053744 A053745

KEYWORD

nonn,easy

AUTHOR

Odimar Fabeny (fabeny(AT)braznet.com.br), Feb 13 2000

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu), Feb 22 2000

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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