The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A202127 Number of -n..n arrays of 6 elements with first, second and third differences also in -n..n 1
 35, 663, 4763, 21093, 69573, 188505, 443169, 936715, 1822729, 3318565, 5722319, 9430801, 14956593, 22952527, 34234227, 49800691, 70867027, 98891365, 135597851, 183019459, 243528297, 319860401, 415169845, 533062403, 677620099, 853469649 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 6 of A202124 LINKS R. H. Hardin, Table of n, a(n) for n = 1..194 FORMULA Empirical: a(n) = -a(n-1) -3*a(n-2) -a(n-3) -3*a(n-4) +2*a(n-5) +7*a(n-7) +4*a(n-8) +11*a(n-9) +6*a(n-10) +10*a(n-11) +2*a(n-12) +2*a(n-13) -7*a(n-14) -9*a(n-15) -16*a(n-16) -17*a(n-17) -19*a(n-18) -17*a(n-19) -12*a(n-20) -7*a(n-21) +3*a(n-22) +7*a(n-23) +18*a(n-24) +18*a(n-25) +27*a(n-26) +21*a(n-27) +26*a(n-28) +14*a(n-29) +15*a(n-30) -15*a(n-33) -14*a(n-34) -26*a(n-35) -21*a(n-36) -27*a(n-37) -18*a(n-38) -18*a(n-39) -7*a(n-40) -3*a(n-41) +7*a(n-42) +12*a(n-43) +17*a(n-44) +19*a(n-45) +17*a(n-46) +16*a(n-47) +9*a(n-48) +7*a(n-49) -2*a(n-50) -2*a(n-51) -10*a(n-52) -6*a(n-53) -11*a(n-54) -4*a(n-55) -7*a(n-56) -2*a(n-58) +3*a(n-59) +a(n-60) +3*a(n-61) +a(n-62) +a(n-63) EXAMPLE Some solutions for n=5 ..3...-2...-5...-2....0....4...-3...-1...-2...-2....2....4...-3...-2....2...-3 ..5...-1...-5...-2...-1....3...-1...-1...-4....0....1....0...-1...-2....3...-5 ..3....1...-4...-1...-3....1....0....1...-3....0...-1...-2...-1...-3....2...-4 ..0....4...-5....3...-3....0....0....1...-2...-2...-2...-1....0...-2....3...-4 .-3....5...-4....5...-4....0...-3....1...-2...-4...-1...-1....2...-1....1...-2 .-4....3...-4....4...-5...-4...-4...-3....0...-2...-3...-4....0...-2...-1....1 CROSSREFS Sequence in context: A126925 A010987 A178353 * A175774 A112504 A140405 Adjacent sequences: A202124 A202125 A202126 * A202128 A202129 A202130 KEYWORD nonn AUTHOR R. H. Hardin Dec 11 2011 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 16 07:19 EDT 2024. Contains 373423 sequences. (Running on oeis4.)