31780

Appears in sequences

• a(n) = floor(10000*log(n)).at n=23A004243
• a(n) is the sum of the non-Fibonacci numbers in row n of array T given by A027935, computed as T(n,m) + T(n,m+1) + ... + T(n,n-1), where m = floor((n+2)/2).at n=15A027946
• Dimension of space of invariants of n-th tensor power of 7-dimensional irreducible representation of G_2. Also the number of n-leaf, otherwise trivalent graphs in a disk such that all faces have at least 6 sides.at n=11A059710
• Structured triakis tetrahedral numbers (vertex structure 4).at n=27A100175
• Numbers which when multiplied by any repunit prime Rp give a Smith number.at n=15A104167
• Number of ternary rooted identity (distinct subtrees) trees with n nodes.at n=16A116379
• Numbers k such that the k-th triangular number contains only digits {0,5,9}.at n=9A119086
• a(n) = (2*n-3-(-1)^n)*(22*n^2-21*n+5*n*(-1)^n)/96.at n=41A298992