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A080805 Numbers n such that A072475(n) divides A071221(n). 4
1, 4, 5, 6, 8, 19, 20, 21, 23, 27, 28, 35, 48, 50, 53, 59, 79, 83, 86, 91, 113, 127, 133, 143, 148, 153, 158, 164, 177, 180, 181, 186, 188, 189, 191, 193, 198, 207, 213, 219, 220, 225, 227, 233, 235, 237, 241, 254, 258, 260, 265, 274, 276, 277, 296, 297, 306 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

PROG

(PARI) k=3; for(n=1, 500, p=1; s=0; for(i=1, n, while(isprime(k), k=k+1); p=p*k; s=s+k; k=k+1); if(p%s==0, print1(n", ")))

CROSSREFS

Sequence in context: A143903 A006756 A067652 * A104626 A242955 A086726

Adjacent sequences:  A080802 A080803 A080804 * A080806 A080807 A080808

KEYWORD

nonn

AUTHOR

Ralf Stephan, Mar 24 2003

STATUS

approved

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Last modified July 23 19:00 EDT 2021. Contains 346259 sequences. (Running on oeis4.)