This site is supported by donations to The OEIS Foundation.

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 4500 articles have referenced us, often saying "we would not have discovered this result without the OEIS".

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A141656 A triangle of coefficients representing an Integer Cyclotomic c(x,n) rotation of the primes: t(n,m)=If[ Prime,Floor[C(m/(n+2),Prime(n+1))*Prime(n+1))]]. 0
 2, 3, 5, 7, 11, 17, 11, 13, 13, 17, 19, 67, 19, 23, 29, 31, 53, 79, 31, 37, 41, 53, 61 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row sums are: {2, 3, 5, 35, 24, 13, 103, 19, 23, 192, 223}. LINKS FORMULA t(n,m)=If[ Prime,Floor[C(m/(n+2),Prime(n+1))*Prime(n+1))]]. EXAMPLE {2}, {3}, {5}, {7, 11, 17}, {11, 13}, {13}, {17, 19, 67}, {19}, {23}, {29, 31, 53, 79}, {31, 37, 41, 53, 61} MATHEMATICA Clear[T, n, m] T[n_, m_] = Floor[Cyclotomic[Prime[n + 1], m/(n + 2)]*Prime[n + 1]]; Table[Flatten[Table[If[PrimeQ[T[n, m]], T[n, m], {}], {m, 0, n}]], {n, 0, 10}]; Flatten[%] CROSSREFS Cf. A141529. Sequence in context: A218022 A091980 A005685 * A092180 A050298 A094751 Adjacent sequences:  A141653 A141654 A141655 * A141657 A141658 A141659 KEYWORD nonn,tabf,uned AUTHOR Roger L. Bagula, Sep 04 2008 STATUS approved

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

Content is available under The OEIS End-User License Agreement .