The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A183943 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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Number of strings of n numbers x(i) in -8..8 with sums of x(i) and of x(i)*x(i+1) both zero
(history; published version)

#4 by Russ Cox at Sat Mar 31 12:35:55 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Jan 08 2011

Discussion

Sat Mar 31

12:35

OEIS Server: https://oeis.org/edit/global/875

#3 by Ron Hardin at Sat Jan 08 10:46:35 EST 2011

STATUS

proposed

approved

#2 by Ron Hardin at Sat Jan 08 10:46:25 EST 2011

NAME

allocated for Ron HardinNumber of strings of n numbers x(i) in -8..8 with sums of x(i) and of x(i)*x(i+1) both zero

DATA

1, 1, 17, 69, 1417, 9335, 135793, 1639099, 23586625, 323498939, 4919390397, 73971159473, 1157160667507

OFFSET

1,3

COMMENTS

Column 8 of A183944

EXAMPLE

Some solutions for n=4

..3....6....3...-4....7...-2...-3...-8....0...-4....8....2....5...-2....0....0

..0....0....6....0....0....0....0....2....7....1....0....0....0...-4....8...-3

..0...-6...-6....0...-7....2....3....4....0....2...-8....0...-5...-2....0....0

.-3....0...-3....4....0....0....0....2...-7....1....0...-2....0....8...-8....3

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Jan 08 2011

STATUS

approved

proposed

#1 by Ron Hardin at Sat Jan 08 10:34:25 EST 2011

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved