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A068322 a(n)=number of arithmetic progressions of odd numbers, strictly increasing with sum n. 0
1, 0, 1, 1, 1, 1, 1, 2, 2, 2, 1, 3, 1, 3, 3, 5, 1, 4, 1, 5, 4, 5, 1, 7, 2, 6, 5, 8, 1, 7, 1, 9, 6, 8, 2, 11, 1, 9, 7, 12, 1, 10, 1, 12, 10, 11, 1, 15, 2, 12, 9, 15, 1, 13, 3, 16, 10, 14, 1, 18, 1, 15, 12, 20, 4, 17, 1, 19, 12, 17, 1, 22, 1, 18, 16, 22, 2, 20, 1, 24, 15, 20, 1, 25, 5, 21, 15, 26 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,8

LINKS

Table of n, a(n) for n=1..88.

CROSSREFS

Sequence in context: A270488 A083898 A078314 * A230243 A078687 A133138

Adjacent sequences:  A068319 A068320 A068321 * A068323 A068324 A068325

KEYWORD

easy,nonn

AUTHOR

Naohiro Nomoto, Feb 27 2002

STATUS

approved

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Last modified June 15 20:50 EDT 2019. Contains 324145 sequences. (Running on oeis4.)