108950

Appears in sequences

• Number of admissible sequences of order j; related to 3x+1 problem and Wagon's constant.at n=15A100982
• G.f.: exp( Sum_{n>=1} 6 * A084214(n) * x^n/n ) where g.f. of A084214 is (1+x^2)/((1+x)*(1-2*x)).at n=9A182349
• Length of Collatz dropping time patterns in A186008.at n=16A186009
• Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.at n=3A253402
• Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.at n=2A253403
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.at n=17A253407
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.at n=18A253407
• a(n) is the number of odd numbers k < 2^n such that A260590(k) = n.at n=25A260591