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A174540 Partial sums of A036983. 0
0, 1, 2, 4, 8, 13, 43, 52 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,3

COMMENTS

Partial sums of number of invariants in Hilbert basis for binary forms of degree n. Extending this is related to a "gorgeous open question of great antiquity" [J. Towber, 19999]. The subsequence of primes in this partial sum begins: 2, 13, 43.

LINKS

Table of n, a(n) for n=2..9.

FORMULA

a(n) = SUM[i=2..n] A036983(i).

EXAMPLE

a(9) = 0 + 1 + 1 + 2 + 4 + 5 + 30 + 9 = 52.

CROSSREFS

Cf. A036983, A036984.

Sequence in context: A288925 A018285 A026665 * A253766 A076380 A049133

Adjacent sequences:  A174537 A174538 A174539 * A174541 A174542 A174543

KEYWORD

more,nonn

AUTHOR

Jonathan Vos Post, Mar 21 2010

STATUS

approved

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Last modified July 28 17:15 EDT 2021. Contains 346335 sequences. (Running on oeis4.)