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!)
 A248493 Number of length 4+5 0..n arrays with some three disjoint pairs in each consecutive six terms having the same sum 1
 22, 183, 1156, 4285, 11586, 25495, 48808, 81225, 126358, 186091, 261804, 358693, 477970, 623571, 799888, 1008829, 1252710, 1539391, 1869148, 2246457, 2680546, 3170743, 3720888, 4342813, 5035822, 5803971, 6658156, 7601953, 8637618, 9778375 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 4 of A248489 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = -2*a(n-2) -2*a(n-4) +a(n-5) -a(n-6) +3*a(n-7) +a(n-8) +5*a(n-9) +3*a(n-10) +5*a(n-11) +3*a(n-12) +2*a(n-13) -3*a(n-15) -4*a(n-16) -8*a(n-17) -6*a(n-18) -10*a(n-19) -4*a(n-20) -7*a(n-21) +a(n-22) -a(n-23) +7*a(n-24) +4*a(n-25) +10*a(n-26) +6*a(n-27) +8*a(n-28) +4*a(n-29) +3*a(n-30) -2*a(n-32) -3*a(n-33) -5*a(n-34) -3*a(n-35) -5*a(n-36) -a(n-37) -3*a(n-38) +a(n-39) -a(n-40) +2*a(n-41) +2*a(n-43) +a(n-45) EXAMPLE Some solutions for n=6 ..3....5....2....4....5....6....1....1....2....2....2....0....4....1....3....5 ..3....4....6....2....3....2....2....3....3....2....1....2....5....4....6....4 ..4....6....5....3....4....4....3....2....3....5....0....2....1....3....4....6 ..0....2....1....5....2....3....0....3....4....4....5....3....6....5....4....4 ..1....3....4....1....6....5....4....5....5....4....6....1....3....3....5....2 ..1....4....0....6....4....4....5....4....4....1....4....4....2....2....5....3 ..3....5....2....4....5....6....1....4....5....2....2....3....4....1....3....5 ..3....1....6....2....3....5....2....3....3....2....1....5....5....4....6....1 ..4....3....5....0....1....4....6....2....6....5....3....2....1....3....4....6 CROSSREFS Sequence in context: A191012 A248491 A248492 * A248494 A248495 A248496 Adjacent sequences:  A248490 A248491 A248492 * A248494 A248495 A248496 KEYWORD nonn AUTHOR R. H. Hardin, Oct 07 2014 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 September 26 09:15 EDT 2021. Contains 347664 sequences. (Running on oeis4.)