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 A187989 Number of nondecreasing arrangements of 5 numbers x(i) in -(n+3)..(n+3) with the sum of sign(x(i))*2^|x(i)| zero. 2
 36, 57, 82, 111, 144, 181, 222, 267, 316, 369, 426, 487, 552, 621, 694, 771, 852, 937, 1026, 1119, 1216, 1317, 1422, 1531, 1644, 1761, 1882, 2007, 2136, 2269, 2406, 2547, 2692, 2841, 2994, 3151, 3312, 3477, 3646, 3819, 3996, 4177, 4362, 4551, 4744, 4941 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A187988. LINKS R. J. Mathar, Table of n, a(n) for n = 1..86 correcting the earlier R. H. Hardin file at a(28). EXAMPLE Some solutions for n=3: -6 -4 -4 -6 -4 -3 -4 -3 -6 -3 -3 -6 -4 -5 -5 -1 -1 -4 -4 -3 -1 -2 -3 0 -5 -3 -3 -1 1 -4 -2 -1 -1 -4 -3 3 1 -2 -3 0 5 -2 -3 1 1 3 -2 -1 2 -4 3 5 3 3 4 1 5 2 -3 5 2 3 3 1 6 6 5 5 3 3 4 2 5 4 5 5 3 5 5 2 CROSSREFS Sequence in context: A336384 A124941 A116321 * A080469 A341283 A260138 Adjacent sequences: A187986 A187987 A187988 * A187990 A187991 A187992 KEYWORD nonn AUTHOR R. H. Hardin Mar 18 2011 EXTENSIONS a(28) corrected by R. J. Mathar, May 09 2023 STATUS approved

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Last modified September 16 22:04 EDT 2024. Contains 375979 sequences. (Running on oeis4.)