247236

Appears in sequences

• Numbers whose set of base 12 digits is {0,B}, where B base 12 = 11 base 10.at n=26A097258
• a(n) = A014486(A122234(n)).at n=6A122235
• Number of permutations of 2 indistinguishable copies of 1..n with exactly 2 adjacent element pairs in decreasing order.at n=6A151624
• Irregular triangle read by rows: T(n,k) = Sum_{i=0..k} (-1)^i * binomial(2*n+1,i) * binomial(k+2-i,2)^n, 0 <= k <= 2*(n-1).at n=38A154283
• Irregular triangle read by rows: T(n,k) = Sum_{i=0..k} (-1)^i * binomial(2*n+1,i) * binomial(k+2-i,2)^n, 0 <= k <= 2*(n-1).at n=46A154283
• Number of nondecreasing arrangements of 7 nonzero numbers in -(n+5)..(n+5) with sum zero.at n=11A188337