A177366 a(n) contains the nonzero frequencies f(d) of digits d=0 .. 9 in all terms up to a(n-1) in concatenated form sorted with respect to d: f(0)//0//f(1)//1//...//f(9)//9. Initial term a(1)=7.

7, 17, 1127, 311237, 51222347, 615233141557, 91625324451667, 11182634465467719, 1519273747576971829, 181112838495861472859, 23113293104115961577879, 1029115212311413510618788109, 40391182143124155116197118129, 50501212163154175126207138159, 80581252183164225146227148169

Offset: 1

Author

Paolo P. Lava and Giorgio Balzarotti, May 10 2010

Keywords

• easy
• nonn
• base

Comments

For a Mathematica program, see A177360 (you have to slightly modify it) [From Jasper Mulder (jasper.mulder(AT)planet.nl), Jun 04 2010]

Examples

			Seven; one seven; one one, two sevens; three ones, one twos, three sevens; five ones, two twos, thwo threes, four sevens; six ones, five twos, three threes, one four, one five, five sevens; etc.
		

Links

• J. Mulder, Table of n, a(n) for n = 1..25000

Crossrefs

Cf. A060857, A177359 - A177368.

Extensions

Terms corrected using values in b-file. - N. J. A. Sloane, Oct 05 2010