23680

Appears in sequences

• Triangle of coefficients of polynomials (rising powers) useful for convolutions of A001333(n+1), n >= 0 (associated Pell numbers).at n=12A062134
• Numbers k such that phi(k) = bigomega(k)*tau(k)^2.at n=30A068540
• Numbers which are the sum of two positive cubes and divisible by 37.at n=28A102618
• Terms of A024670 that are not in A141805.at n=35A141806
• Numbers with prime signature {7,1,1}, i.e., of form p^7*q*r with p, q and r distinct primes.at n=31A179696
• Number of standardized 4-connected corner polyominoes of inner site-perimeter n.at n=7A216946
• Number of (n+1)X(2+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock equal.at n=1A237533
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock equal.at n=4A237538
• Number of (n+2)X(4+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101.at n=4A259997
• Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101.at n=3A259998
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101.at n=31A260001
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101.at n=32A260001