31152

Appears in sequences

• Theta series of A*_11 lattice.at n=59A023923
• Coordination sequence for lattice D*_4 (with edges defined by l_1 norm = 1).at n=18A035471
• Jacobi form of weight 12 and index 1 for Niemeier lattice of type A_8^3.at n=7A055759
• Smallest number m such that m^2+1 is divisible by A002144(n)^2 (= squares of primes congruent to 1 mod 4).at n=31A059321
• Digits of sigma(n) end in phi(n).at n=15A067249
• Treated as strings, phi(n) is a substring of sigma(n).at n=28A074452
• Numbers n with property that for each single digit d of n, we can also see the decimal expansion of the d-th prime as a substring of n. Also n may not contain any zero digits.at n=13A135015
• Expansion of g.f. 1/((1-x^2+x^3+x^4-x^5)*(1-x-x^2+x^3-x^5)).at n=29A147598
• Integers that do not have a partition into a sum of an odd square and two (not necessarily distinct) triangular numbers.at n=46A191764
• a(n) = sum of absolute values of coefficients in (1-x-x^2+x^3)^n.at n=9A192205
• Let m_n denote the number which is obtained from n-base representation of m if its digits are written in nondecreasing order; then a(n) is the smallest period of the sequence which is defined by the recurrence b(0)=0, b(1)=1, b(k)=(b(k-1) + b(k-2))_n, for k>=2, or a(n)=0, if there is no such period.at n=41A237671
• Numbers that are both interprime and oblong.at n=43A263676
• Number of n X n 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.at n=6A280597
• Number of nX7 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.at n=6A280603
• Number of inequivalent ways to color the edges of a tetrahedron using at most n colors so that no two opposite edges have the same color.at n=9A282819
• Oblong numbers the product of whose digits are positive oblong numbers.at n=14A285079
• Anagrexpo integers: integers N that exactly reproduce their set of digits when we form the set of exponentiation of pairs of adjacent digits, from left to right.at n=41A297627