76838

Appears in sequences

• a(n) is the smallest positive d such that the n-th prime is the smallest prime p for which p+d is also prime.at n=40A101042
• Number of (n+2) X (3+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00010001 00010101 or 01010101.at n=9A261108
• Number of 3Xn arrays containing n copies of 0..3-1 with no element plus any horizontal or vertical neighbor equal to 3-1.at n=9A265664