

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
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OFFSET

0,3


REFERENCES

F. J. MacWilliams and N. J. A. Sloane, The Theory of ErrorCorrecting Codes, ElsevierNorth Holland, 1978, p. 129.


LINKS

Georg Fischer, Table of n, a(n) for n = 0..30
List of weight distributions


FORMULA

a(n) = A010087(2n).  Georg Fischer, Jul 14 2020


MATHEMATICA

m:=63; RecurrenceTable[{a[n]==(Binomial[m, n1]a[n1](mn+2)*a[n2])/n, a
[0]==1, a[1]==0}, a, {n, 0, m}][[1;; m2;; 2]] (* Georg Fischer, Jul 14 2020; from the reference, p. 129 *)


CROSSREFS

Cf. A010087.
Sequence in context: A204286 A242878 A247696 * A023339 A145209 A035911
Adjacent sequences: A010089 A010090 A010091 * A010093 A010094 A010095


KEYWORD

nonn,fini,full


AUTHOR

N. J. A. Sloane.


STATUS

approved



