355573

Properties

Appears in sequences

• a(n) is the least k such that A098598(k) = n.at n=19A097208
• Lesser of emirps (pairs) with only prime digits (A128388).at n=29A133554
• Each entry is the first of three consecutive primes with equal digital sum.at n=17A209396
• T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1s.at n=58A297544
• Number of 4Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1s.at n=7A297547
• Prime numbersat n=30425