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A226900 Record values of Hooley's Delta function A226898. 3
1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 17, 18, 19, 20, 21, 22, 23, 25, 27, 28, 29, 31, 32, 33, 34, 39, 44, 48, 51, 55, 60, 62, 66, 69, 77, 80, 83, 88, 91, 92, 98, 100, 106, 107, 111, 118, 121, 122, 124, 137, 138, 142, 150, 156 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

C. Hooley, On a new technique and its applications to the theory of numbers, Proc. London Math. Soc. 3 38:1 (1979), pp. 115-151.

LINKS

Table of n, a(n) for n=1..56.

PROG

(PARI) Delta(n)=my(d=divisors(n), m=1); for(i=1, #d-1, my(t=exp(1)*d[i]); m=max(sum(j=i, #d, d[j]<t), m)); m

r=0; for(n=1, 1e9, t=Delta(n); if(t>r, r=t; print1(t", ")))

CROSSREFS

Cf. A226898, A226899, A002183.

Sequence in context: A050742 A290387 A238985 * A111228 A283248 A280595

Adjacent sequences:  A226897 A226898 A226899 * A226901 A226902 A226903

KEYWORD

nonn

AUTHOR

Charles R Greathouse IV, Jun 21 2013

EXTENSIONS

a(38)-a(54) from Charles R Greathouse IV, Jun 24 2013

a(55)-a(56) from Charles R Greathouse IV, Jul 01 2013

STATUS

approved

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Last modified June 19 17:48 EDT 2019. Contains 324222 sequences. (Running on oeis4.)