A118387 - OEIS

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A118387

Record values in A079300 (number of shortest addition chains of n).

1

1, 2, 5, 15, 33, 40, 132, 220, 352, 1258, 2661, 3903, 9787, 12989, 17961, 31373, 33076, 55262, 110624

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OFFSET

1,2

COMMENTS

Computed by Neill M. Clift. Verified up to a(17) by David W. Wilson.

REFERENCES

See A118386 for references.

LINKS

Table of n, a(n) for n=1..19.

FORMULA

a(n) = A079300(A118386(n)).

CROSSREFS

Cf. A003313, A079300, A118386.

Sequence in context: A006451 A226103 A000962 * A245961 A034522 A276720

Adjacent sequences: A118384 A118385 A118386 * A118388 A118389 A118390

KEYWORD

nonn,hard,more

AUTHOR

David W. Wilson, Apr 26 2006

STATUS

approved