453948

Appears in sequences

• a(n) = 4*a(n-1) - a(n-2), with a(0) = 0, a(1) = 3.at n=10A005320
• Numerators of continued fraction convergents to sqrt(147).at n=4A041268
• a(n) = 4*a(n-2) - a(n-4).at n=19A083336
• Number of compositions (ordered partitions) of n whereby at most 1 increase is allowed and this increase must be by 1.at n=38A090752
• Numerators of principal and intermediate convergents to 3^(1/2).at n=29A143642
• Numerators of the lower principal convergents and the lower intermediate convergents to 3^(1/2).at n=19A143643
• List of triples (r,s,t): the matrix M = [[4,12,9][2,7,6][1,4,4]] is raised to successive powers, then (r,s,t) are the square roots of M[3,1], M[1,1], M[1,3] respectively.at n=32A249578
• Numerators of the other-side convergents to sqrt(3).at n=19A259593