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 A105525 Smallest prime forming a product of n distinct primes when a 1 is appended to it. 1
 3, 2, 23, 821, 14387, 131231, 4976687, 87200213, 6746125577, 121926946241, 5509396663871, 254605525405331, 12690278491719929, 565269607109838731, 32485826999091637271, 2154833052882128071553, 156066104202356713394129 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE We have a(2)=2 because 2 is the first prime ahead of 5,11,29,37,... each becoming a product of two distinct primes with an appended 1. PROG (PARI) {r(n, p, d)=local(q); if(d==0, if(n%10==1 && isprime(n\10) && n

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Last modified December 7 13:08 EST 2021. Contains 349581 sequences. (Running on oeis4.)