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

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A107256 a(n) = n^6 - 63*n + 63, with n*a(n) + n*(n-1)*63 = n^7. 0
 1, 1, 603, 3907, 15373, 46341, 117271, 261703, 530937, 999433, 1770931, 2985291, 4826053, 7528717, 11389743, 16776271, 24136561, 34011153, 47044747, 63998803, 85764861, 113378581, 148034503, 191101527, 244139113, 308914201, 387418851 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS EXAMPLE a(2) = 1, 1 + 127 = 2^7; a(3) = 603, 603 + 729 + 855 = 3^7; a(4) = 3907, 3907 + 4033 + 4159 + 4285 = 4^7. CROSSREFS Sequence in context: A348077 A066785 A178032 * A177685 A250907 A209550 Adjacent sequences: A107253 A107254 A107255 * A107257 A107258 A107259 KEYWORD nonn AUTHOR Andras Erszegi (erszegi.andras(AT)chello.hu), May 14 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 November 26 21:15 EST 2022. Contains 358362 sequences. (Running on oeis4.)