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A010092
Weight distribution of d=4 Hamming code of length 63.
1
1, 0, 9765, 1057224, 60544953, 1996794072, 41694856749, 584173436400, 5724932809365, 40448633569680, 210758816714985, 823875120414360, 2447745309517725, 5580858785942664, 9832942289229633, 13449656041565856
OFFSET
0,3
REFERENCES
F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, Elsevier-North Holland, 1978, p. 129.
FORMULA
a(n) = A010087(2n). - Georg Fischer, Jul 14 2020
MATHEMATICA
m:=63; RecurrenceTable[{a[n]==(Binomial[m, n-1]-a[n-1]-(m-n+2)*a[n-2])/n, a
[0]==1, a[1]==0}, a, {n, 0, m}][[1;; m-2;; 2]] (* Georg Fischer, Jul 14 2020; from the reference, p. 129 *)
CROSSREFS
Cf. A010087.
Sequence in context: A204286 A242878 A247696 * A023339 A145209 A035911
KEYWORD
nonn,fini,full
STATUS
approved