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A083176
Arithmetic means of rows of A083173.
3
2, 6, 10, 21, 33, 52, 68, 95, 115, 174, 186, 259, 287, 344, 376, 477, 531, 610, 670, 781, 803, 948, 996, 1157, 1261, 1414, 1442, 1605, 1635, 1808, 2032, 2227, 2329, 2502, 2682, 2869, 2983, 3260, 3340, 3633, 3759, 3982, 4202, 4439, 4531, 4776, 5064, 5575
OFFSET
1,1
COMMENTS
If p > 3 is a prime then a(p) = prime(p)*(p+1)/2.
FORMULA
a(n) = A083175(n)/n.
PROG
(PARI) for(i=1, 120, p=prime(i); s=p*((i-1)*(i))/2; t=sum(k=1, i-1, p*k); k=i; while(denominator((s+k*p)/i)>1, k++); t+=k*p; print1(t/i, ", ")) \\ Lambert Herrgesell (zero815(AT)googlemail.com), Dec 30 2005
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Apr 26 2003
EXTENSIONS
More terms from Lambert Herrgesell (zero815(AT)googlemail.com), Dec 30 2005
STATUS
approved