A054262 Start with the prime 11; next prime must exceed previous prime and start with last digit of previous prime.

11, 13, 31, 101, 103, 307, 701, 1009, 9001, 10007, 70001, 100003, 300007, 700001, 1000003, 3000017, 7000003, 30000001, 100000007, 700000001, 1000000007, 7000000001, 10000000019, 90000000019, 90000000023, 300000000077

Offset

0,1

Links

Table of n, a(n) for n=0..25.

C. Rivera, Puzzle 45 - Prime Solitaire

Prog

(PARI) nxtprm(fp) = {fd = digits(fp); ld = fd[#fd]; forprime(p = fp+1, , nd = digits(p); if ((nd[1] == ld) , return (p))); }
lista(nn) = {fp = 1; for (n=1, nn, np = nxtprm(fp); print1(np, ", "); fp = np; ); }

Crossrefs

Cf. A053649 (similar sequence without 0 digits).

Sequence in context: A262254 A082238 A179551 * A053649 A104151 A088263

Adjacent sequences: A054259 A054260 A054261 * A054263 A054264 A054265

Keyword

easy,nonn,base

Author

Patrick De Geest, Feb 15 2000

Status

approved