A158059 a(1)=2, a(n+1) is the smallest prime >= n*sum of digits of a(n).

2, 2, 5, 17, 37, 53, 53, 59, 113, 47, 113, 59, 173, 149, 197, 257, 227, 191, 199, 367, 331, 149, 311, 127, 241, 179, 443, 307, 281, 331, 211, 127, 331, 233, 277, 563, 509, 521, 307, 397, 761, 577, 809, 733, 577, 857, 929, 941, 673, 787, 1103, 257, 733, 691, 877

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Example

2, 2(=2=1*2), 5(>4=2*2), 17(>15=3*5), 37(>32=4*1+4*7), 53(>50=5*3+5*7), 53(>48=6*5+6*3), 59(>56=7*5+7*3), 113(>112=8*5+8*9), 47(>45=9*1+9*1+9*3)

Crossrefs

Cf. A000027, A000040, A156615.

Sequence in context: A032130 A259101 A184313 * A173323 A019099 A154647

Adjacent sequences: A158056 A158057 A158058 * A158060 A158061 A158062

Keyword

nonn,base,less

Author

Juri-Stepan Gerasimov, Mar 12 2009

Extensions

a(49) and terms from a(53) on corrected by R. J. Mathar, May 19 2010

Status

approved