187488

Appears in sequences

• Theta series of 14-dimensional extremal 3-modular lattice with det 3^7, minimal norm 4, group 2 X G_2(3).at n=5A004048
• 3rd Bernoulli polynomial evaluated at powers of 2 (multiplied by 6).at n=5A020528
• a(n) = binomial(n+2,2)*binomial(n+6,2).at n=26A104473
• Numerator of f(n) := Product_{i=1..n} sigma(i)/i.at n=15A111928
• A triangle related to the a(n) formulas of the rows of the ED3 array A167572.at n=30A167580
• The third left hand column of triangle A167580.at n=5A167582
• Numbers n with the property that it is possible to write the base 2 expansion of n as concat(a_2,b_2), with a_2>0 and b_2>0 such that, converting a_2 and b_2 to base 10 as a and b, we have sigma(a)*sigma(b) = n.at n=23A244079
• Number of length n arrays of permutations of 0..n-1 with each element moved by -4 to 4 places and with no two consecutive increases or two consecutive decreases.at n=14A263662
• Numbers of the form (p+1)*(p+3) where (p,p+2) is a twin prime pair (cf. A001359).at n=22A362941