23145

Appears in sequences

• Numbers whose base-4 representation contains exactly four 1's and four 2's.at n=11A045109
• Array read by rows in which the n-th row contains the multiples of n in increasing order using all the digits of first n numbers.at n=22A078189
• Number of A095319-primes in range ]2^n,2^(n+1)].at n=18A095329
• Number of A095315-primes in range ]2^n,2^(n+1)].at n=18A095335
• Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime.at n=16A104972
• Expansion of eta(q^3) * eta(q^33) / ( eta(q)* eta(q^11)) in powers of q.at n=48A128663
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0110-1100-0111 pattern in any orientation.at n=11A146800
• Permutations of 12345: Numbers having each of the decimal digits 1,...,5 exactly once, and no other digit.at n=30A178475
• Number of Dyck n-paths all of whose ascents and descents have lengths equal to 1 (mod 5).at n=25A212364
• Number of distinct lines passing through at least three points in a triangular grid of side n.at n=35A234248
• Number of ways to move elements of an nXnXn triangular array to themselves or a neighbor, with no more than 1-1 2-cycles.at n=4A271962
• T(n,k)=Number of ways to move elements of an nXnXn triangular array to themselves or a neighbor, with no more than k-1 2-cycles.at n=14A271969
• List of André permutations of the first kind.at n=16A278982