A112782 Beginning with 2, primes of the form: least multiple of the previous term followed by a 3. Beginning with 2, a(n) is the least prime of the form k*a(n-1)*10 + 3.

2, 23, 233, 2333, 23333, 2566633, 51332663, 10266532603, 205330652063, 4106613041263, 2546100085583063, 636525021395765753, 388280263051417109333, 54359236827198395306623

Offset

1,1

Links

Michael De Vlieger, Table of n, a(n) for n = 1..300

Mathematica

a[1]=2; a[n_]:=a[n]=(For[m=1, !PrimeQ[m a[n-1]*10+3], m++ ]; 10m*a[n-1]+3); Table[a[n], {n, 15}]

Crossrefs

Cf. A112783, A112784.

Sequence in context: A158191 A089703 A088094 * A093672 A262571 A283560

Adjacent sequences: A112779 A112780 A112781 * A112783 A112784 A112785

Keyword

base,nonn

Author

Amarnath Murthy, Jan 02 2006

Extensions

More terms from Joshua Zucker and Farideh Firoozbakht, Jan 05 2006

Status

approved