OFFSET
4,6
LINKS
David A. Corneth, Table of n, a(n) for n = 4..2003
PROG
(PARI) first(n) = { my(m = matrix(n + 4, n + 4)); for(i = 2, n + 4, m[i, i] = 1; ); for(k = 2, n + 4, for(i = k + 1, n + 4, m[i, k] = m[i - (k-1), k] + m[i-1, k-1] ) ); m = matrix(n + 3, n + 3, i, j, m[i + 1, j + 1])^-1; vector(n, i, m[i + 3, 4]) } \\ David A. Corneth, Feb 27 2021
CROSSREFS
KEYWORD
sign,look
AUTHOR
Christian G. Bower, Feb 15 1999
EXTENSIONS
a(63) onward corrected by Sean A. Irvine, Feb 27 2021
STATUS
approved