129030

Appears in sequences

• Numbers k such that k and 7*k are anagrams.at n=26A023091
• Third elementary symmetric function of 3,4,...,n+4.at n=9A024184
• Counts where both the odd composites (starting from 1) 1 mod 4 and 3 mod 4 are equal.at n=26A093182
• Sixth column (m=5) of (1,6)-Pascal triangle A096956.at n=21A096959
• Partition number array, called M32(-5), related to A013988(n,m)= |S2(-5;n,m)| ( generalized Stirling triangle).at n=19A144268
• A partition product of Stirling_2 type [parameter k = 5] with biggest-part statistic (triangle read by rows).at n=19A157405
• Products of 6 distinct primes that are sandwiched between semiprime numbers.at n=10A378627
• Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2).at n=34A380234