42060

Appears in sequences

• Denominators of continued fraction convergents to sqrt(546).at n=11A042045
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,13.at n=16A064243
• Number of binary strings of length n with equal numbers of 0001 and 1110 substrings.at n=17A164165
• Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=8A304954
• a(n) is the sum of the terms of the symmetric square array defined by M(i,j) = prime(i)+i-j for i >= j and M(i,j) = M(j,i) if i < j.at n=24A308731
• Expansion of 1 / Sum_{k>=0} (-x)^(k*(3*k - 1)/2).at n=43A308806
• a(n) = Sum_{k=1..n} (-1)^(k+1) * floor((n/k)^3).at n=35A350222
• Integers k such that there are i groups of order k+i up to isomorphism, for i=1,2,3.at n=27A373649