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A291803 Partial sums of A230625. 2
1, 3, 6, 16, 21, 32, 39, 50, 64, 85, 96, 139, 152, 175, 204, 224, 241, 287, 306, 391, 422, 465, 488, 535, 557, 602, 617, 704, 733, 826, 857, 878, 937, 1018, 1065, 1239, 1276, 1359, 1420, 1513, 1554, 1649, 1692, 1863, 1980, 2067, 2114, 2197, 2227, 2313, 2426 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Although A230625 is a very irregular function, here the graph is much smoother, and it appears that a(n) approx= 1.2*n^2. It would be nice to have a more precise estimate.

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..10000

MATHEMATICA

A230625 = Cases[Import["https://oeis.org/A230625/b230625.txt", "Table"], {_, _}][[All, 2]];

Accumulate[A230625] (* Robert Price, Mar 16 2020 *)

CROSSREFS

Cf. A080670, A287881, A287882, A287874, A230625.

Sequence in context: A009196 A329124 A116613 * A330017 A212977 A127935

Adjacent sequences:  A291800 A291801 A291802 * A291804 A291805 A291806

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 06 2017

STATUS

approved

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Last modified January 27 18:20 EST 2022. Contains 350611 sequences. (Running on oeis4.)