19816

Appears in sequences

• Numbers n such that 237*2^n-1 is prime.at n=33A050877
• Interprimes which are of the form s*prime, s=8.at n=29A075283
• Expansion of exp(2x) - exp(0) + BesselI_0(2x).at n=14A081672
• Self-convolution of A180711.at n=35A180712
• Even-indexed terms of A247984, a sequence motivated by generalized quadrangles.at n=6A246800
• Constant terms of congruences derived from a permutation polynomial motivated by generalized quadrangles.at n=13A247984
• Number of (2+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=30A258555
• Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=3A316809
• Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=3A316811
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=24A316815
• Number of inversion sequences of length n where all consecutive subsequences i,j,k satisfy i < j > k or i >= j <= k.at n=9A328425
• Antidiagonal sums of A373005.at n=14A373006