The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A107854 G.f. x*(x^2+1)*(x^3-x-1)/((2*x^3+x^2-1)*(x^4+1)). 1
 0, 1, 1, 2, 3, 3, 5, 8, 11, 19, 29, 42, 67, 99, 149, 232, 347, 531, 813, 1226, 1875, 2851, 4325, 6600, 10027, 15251, 23229, 35306, 53731, 81763, 124341, 189224, 287867, 437907, 666317, 1013642, 1542131, 2346275, 3569413, 5430536, 8261963, 12569363 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS The sequence A078028 is given by 1em[I* ]forzapseq and is from the same "batch" (i.e., corresponding to the same floretion and symmetry settings) as A107849, A107850, A107851, A107852, A107853 and (a(n)). LINKS Index entries for linear recurrences with constant coefficients, signature (0,1,2,-1,0,1,2). FORMULA a(n) = A159284(n) + A014017(n+5). PROG Floretion Algebra Multiplication Program, FAMP Code: 1dia[I]forzapseq[(.5i' + .5j' + .5'ki' + .5'kj')*(.5'i + .5'j + .5'ik' + .5'jk')], 1vesforzap = A000004 (PARI) a(n)=([0, 1, 0, 0, 0, 0, 0; 0, 0, 1, 0, 0, 0, 0; 0, 0, 0, 1, 0, 0, 0; 0, 0, 0, 0, 1, 0, 0; 0, 0, 0, 0, 0, 1, 0; 0, 0, 0, 0, 0, 0, 1; 2, 1, 0, -1, 2, 1, 0]^n*[0; 1; 1; 2; 3; 3; 5])[1, 1] \\ Charles R Greathouse IV, Oct 03 2016 CROSSREFS Cf. A107849, A107850, A107851, A107852, A107853, A078028. Sequence in context: A017820 A129577 A320784 * A118808 A265019 A193979 Adjacent sequences:  A107851 A107852 A107853 * A107855 A107856 A107857 KEYWORD easy,nonn AUTHOR Creighton Dement, May 25 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 7 22:44 EDT 2020. Contains 336279 sequences. (Running on oeis4.)