36365

Appears in sequences

• Crystal ball sequence for 5-dimensional cubic lattice.at n=10A001847
• Crystal ball sequence for 10-dimensional cubic lattice.at n=5A008421
• a(n) = T(2n, n), where T is the Delannoy triangle (A008288).at n=5A026000
• Numbers k such that k^2 is a concatenation of two successive numbers.at n=5A030467
• Numbers k such that k-th and (k+1)-st term of A038593 differ by 5.at n=21A038636
• Number of nodes in virtual, "optimal", chordal graphs of diameter 5, degree =n+1.at n=18A067969
• Riordan array (1/(1-x), x*(1+x)^2/(1-x)^2).at n=60A114123
• Riordan array (1/(1-2x), x(1-x)/(1-2x)^2).at n=60A114164
• a(1)=1; for n>1, a(n) = Sum_{k=1..n-1} a(k) * floor(n/k).at n=14A126656
• Number triangle T(n,k) = [k<=n]*Hypergeometric2F1([-k, 2k-2n], [1], 2).at n=60A184883
• a(n) = n*(5n^2 + 3n + 4) / 6.at n=35A203551
• Number of partitions p of n such that (number of numbers in p that have multiplicity 1) > (number of numbers in p having multiplicity > 1).at n=44A329976
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} binomial(k*n,n-j) * binomial(k*n+j,j).at n=33A341470
• Positive numbers k such that the decimal expansion of k^2 appears in the concatenation of the first k positive integers.at n=11A343536