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A152403
Column 3 of triangle A152400.
4
1, 4, 24, 182, 1636, 16844, 194384, 2476868, 34461956, 519070980, 8405444924, 145502477888, 2679656009072, 52289220500822, 1077289873778412, 23361106832257087, 531744673834247758, 12673569230875132668
OFFSET
0,2
COMMENTS
Matrix powers of triangle T=A152400 satisfy:
column k of T^(j+1) = column j of T^(k+1) for all j>=0, k>=0.
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Dec 05 2008
STATUS
approved