29312

Appears in sequences

• Numbers k such that phi(sigma(k)+k) = sigma(k-phi(k)), where phi is A000010 and sigma is A000203.at n=37A063710
• Antidiagonal sums of the square array A096583, in which the n-th diagonal equals the convolution of the n-th row with the antidiagonal sums (this sequence).at n=17A096584
• Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,2,4,0,3 for x=0,1,2,3,4.at n=9A196596
• Numbers k whose abundance is 26: sigma(k) - 2*k = 26.at n=3A275701
• Expansion of e.g.f. Product_{k>=1} ((1 - x^k)/(1 + x^k))^(1/k).at n=8A296048
• Practical numbers (A005153) that are abundant and have a record low value of abundancy index.at n=9A362052
• a(n) is the numerator of (120*n^2 + 151*n + 47)/(512*n^4 + 1024*n^3 + 712*n^2 + 194*n + 15).at n=15A374580
• Primitive terms of A388271.at n=26A388272