21026

Appears in sequences

• Multiplicity of highest weight (or singular) vectors associated with character chi_50 of Monster module.at n=43A034438
• Number of walks within N^2 (the first quadrant of Z^2) starting and ending at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 0), (-1, 1), (0, -1), (1, 0)}.at n=12A151348
• a(n) = 841*n + 1.at n=24A158404
• Triangle read by rows: T(n,k) = 1 + (A022166(n,k) - binomial(n,k))^2.at n=17A174918
• Triangle read by rows: T(n,k) = 1 + (A022166(n,k) - binomial(n,k))^2.at n=18A174918
• a(n) = (n^2+1)^2+1.at n=12A178390
• Semiprimes which are the sum of three distinct positive cubes in two or more distinct ways.at n=32A180089
• Expansion of -x*log'(-sqrt(12*x+2*sqrt(1-4*x)+2)/4+sqrt(1-4*x)/4+5/4).at n=10A239230
• Number of length 5+2 0..n arrays with every three consecutive terms having the sum of some two elements equal to twice the third.at n=24A248438
• Values of n such that A080221(n)=6; i.e., values of n such that n is divisible by the sum of digits of n when expressed in exactly 6 of the bases b=1...n.at n=24A271311
• A digitized pure tuning tone, sampled at standard settings for consumer audio: a(n) = floor(sin(2*Pi*(440/44100)*n)*32767).at n=39A320277