26265

Appears in sequences

• Numbers k such that 119*2^k + 1 is prime.at n=14A032409
• Numbers whose base-4 representation contains exactly four 1's and four 2's.at n=23A045109
• a(n) = Sum_{i=0..n} A047130(i, n-i).at n=16A047131
• Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 11 (most significant digit on right).at n=8A061964
• Numbers k such that phi(sigma(k)+k) = sigma(k).at n=17A068366
• List of codewords in binary lexicode with Hamming distance 8 written as decimal numbers.at n=13A075940
• Second partial sums of sixth powers (A001014).at n=4A101093
• a(n) = (4*n^3 - 12*n^2 + 14*n + 3)/3.at n=28A161703
• Coefficients of partition Hermite-Eulerian polynomials: p(x,n)= If[n == 0, 1, HermiteH[n, x]*Sum[Eulerian[n-1, k-1]*x^(k - 1), {k, 1, n}]/2^Floor[n/2]].at n=35A171532
• Rows of negated binary Walsh matrices interpreted as reverse binary numbers.at n=26A228540
• a(n) = 1*5^n + 2*4^n + 3*3^n + 4*2^n + 5*1^n.at n=6A254031
• a(n) = Sum_{i=1..n-1}(i^(n-2)) mod n^4.at n=17A284760