24739

Appears in sequences

• Centered icosahedral (or cuboctahedral) numbers, also crystal ball sequence for f.c.c. lattice.at n=19A005902
• Expansion of Product_{m>=1} (1+x^m)^13.at n=6A022578
• Numbers whose base-5 representation contains exactly three 2's and three 4's.at n=25A045292
• First denominator and then numerator of the elements to the right of the central elements of the 1/4-Pascal triangle (by row), excluding 1's and 4's.at n=59A046578
• Distinct odd numbers in the numerators of the 1/4-Pascal triangle (by row).at n=48A046586
• Distinct numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/4-Pascal triangle (by row).at n=50A046588
• Numerators of the elements to the right of the central elements of the 1/4-Pascal triangle (by row), excluding 1's.at n=49A046590
• Number of sensed nonseparable (2-connected) planar maps with n edges and a distinguished face of size 2.at n=9A046650
• Triangle of rooted planar maps up to orientation-preserving isomorphisms.at n=54A046653
• G.f.: 1/((1-x^2)^3*(1-x)^4).at n=18A060099
• Fourth column (m=3) of triangle A060102.at n=9A060103
• a(1)=1, a(n) is the smallest integer > a(n-1) such that the sum of elements of the simple continued fraction for S(n)=1/a(1)+1/a(2)+...+1/a(n) equals n^3.at n=9A071971
• Sum of next n integer interprimes (cf. A024675).at n=19A075673
• Ordered product of the sides of primitive Pythagorean triangles divided by 60.at n=27A081752
• Coefficients of 1/sqrt(1 - 2*x - 11*x^2); also, a(n) is the central coefficient of (1 + x + 3*x^2)^n.at n=8A084603
• Shifts 1 place left under the INVERT transform of the BINOMIAL transform of the self-convolution cube of this sequence.at n=6A090367
• Numbers k such that sigma(phi(k)) - phi(sigma(k)) is nonzero and divisible by sigma(k), that is A065395(k)/A000203(k) is a nonzero integer.at n=24A092588
• Number of base 17 circular n-digit numbers with adjacent digits differing by 2 or less.at n=6A124898
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (-1, 1, -1), (0, 1, 0), (1, -1, 0)}.at n=11A148129
• Number of (w,x,y,z) with all terms in {1,...,n} and |w-x| = 2*|x-y| - |y-z|.at n=39A212578