101231

Appears in sequences

• a(n) = T(n, 2*n-5), T given by A027926.at n=25A027928
• a(n) = 7^n - 5^n - 3^n - 2^n. Constants are the prime numbers in decreasing order.at n=6A135161
• Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 4 ones in any 4 X 4 X 4 subtriangle.at n=11A153932
• Fixed points of permutations A256210 and A256371.at n=34A256372
• Numbers n such that the sum of the distinct prime factors of prime(n)-1 and prime(n+1)-1 are the same.at n=24A259562
• a(n) = smallest k such that the digits of exactly n nonnegative numbers are a subsequence of the digits of k.at n=36A275782