91997

Properties

Appears in sequences

• Expansion of 1/(1-x^4-x^5-x^6-x^7-x^8-x^9-x^10-x^11-x^12-x^13).at n=42A017835
• Substrings from the right are prime numbers (using only odd digits different from 5).at n=37A032437
• Numbers k such that the smoothly undulating palindromic number (38*10^k - 83)/99 is a prime.at n=11A062220
• Smallest prime (or noncomposite) strictly greater than sum of previous terms (with a(0)=1).at n=16A064934
• Primes p such that p's set of distinct digits is {1,7,9}.at n=33A108384
• a(1)=2; a(n)=smallest prime not less than the sum of all previous terms.at n=16A112527
• Larger of 3 consecutive prime numbers such that p1*p2*p3 + d1 + d2 - 1 = average of twin prime pairs, d1 (delta) = p2 - p1, d2 (delta) = p3 - p2.at n=21A153405
• Main diagonal of Ludic array A255127 (and A255129): a(n) = A255127(n,n).at n=44A255410
• Prime numbersat n=8887