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A174787 Cumulative sums of A174725. 1
1, 1, 1, 2, 2, 4, 4, 6, 7, 9, 9, 13, 13, 15, 17, 21, 21, 25, 25, 29, 31, 33, 33, 43, 44, 46, 48, 52, 52, 58, 58, 66, 68, 70, 72, 85, 85, 87, 89, 99, 99, 105, 105, 109, 113, 115, 115, 139, 140, 144, 146, 150, 150, 160, 162, 172, 174, 176, 176, 198, 198, 200, 204, 220, 222 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

By fitting a second order polynomial in Excel to the 77 first terms we get 0,039x^2+0,8859x-3,5396 with the R-square value 0,9974.

LINKS

Table of n, a(n) for n=1..65.

CROSSREFS

Cf. A174725, A174788, A002321.

Sequence in context: A106247 A337030 A319400 * A094909 A237799 A318029

Adjacent sequences: A174784 A174785 A174786 * A174788 A174789 A174790

KEYWORD

nonn

AUTHOR

Mats Granvik, Mar 29 2010

STATUS

approved

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Last modified December 2 20:59 EST 2022. Contains 358510 sequences. (Running on oeis4.)