A230413 - OEIS

A230413

a(0)=0 and from then on, the partial sums of A230412 summed from the term a(1) onward.

0, 1, 2, 2, 2, 3, 4, 5, 5, 5, 6, 7, 8, 8, 8, 9, 10, 11, 11, 11, 11, 11, 11, 12, 13, 14, 14, 14, 15, 16, 17, 17, 17, 18, 19, 20, 20, 20, 21, 22, 23, 23, 23, 23, 23, 23, 24, 25, 26, 26, 26, 27, 28, 29, 29, 29, 30, 31, 32, 32, 32, 33, 34, 35, 35, 35, 35, 35, 35

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OFFSET

0,3

COMMENTS

Alternatively, one less than the partial sums of A230412 summed from the beginning.

Each n occurs A230405(n) times.

Together with A230412 can be used to compute A230414, A230423 and A230424.

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..10079

FORMULA

a(0) = 0; and for n>=1, a(n) = A230413(n-1) + A230412(n).

a(A219650(n)) = n for all n.