The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS If p > 3 is a prime then a(p) = prime(p)*(p+1)/2. LINKS Table of n, a(n) for n=1..48. 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 Cf. A083173, A083174, A083175. Sequence in context: A272967 A067716 A125518 * A103628 A207382 A334344 Adjacent sequences: A083173 A083174 A083175 * A083177 A083178 A083179 KEYWORD nonn AUTHOR Amarnath Murthy, Apr 26 2003 EXTENSIONS More terms from Lambert Herrgesell (zero815(AT)googlemail.com), Dec 30 2005 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 9 19:10 EDT 2023. Contains 363183 sequences. (Running on oeis4.)