20761

Appears in sequences

• Numbers that are the sum of 6 positive 7th powers.at n=39A003373
• Fibonacci sequence beginning 0, 13.at n=17A022347
• Average of squares of successive primes: a(n) = (prime(n+1)^2 + prime(n)^2)/2, with n >= 2.at n=32A075892
• Unsigned row sums of triangle A112707 (partial sums of Catalan numbers multiplied by powers of negative numbers).at n=8A112709
• a(n) = (3*11^n - 7^n)/2.at n=4A165151
• Diagonal sums of the Riordan matrix (1/(1-4x),(1-sqrt(1-4x))/(2*sqrt(1-4x))) (A188481).at n=7A188482
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 566", based on the 5-celled von Neumann neighborhood.at n=14A283064
• G.f.: Sum_{k>=1} x^k/(1-x^k) * Product_{k>=1} (1+x^k).at n=40A305082
• The successive approximations up to 2^n for 2-adic integer 9^(1/3).at n=15A322999
• Consecutive states of the linear congruential pseudo-random number generator for the Texas Instruments TI99 when started at 1.at n=8A384221