A322777 Scan first k digits of Pi starting with 3, for k = 1,2,3,..., record all distinct numbers in the order in which they appear.

3, 31, 1, 314, 14, 4, 3141, 141, 41, 31415, 1415, 415, 15, 5, 314159, 14159, 4159, 159, 59, 9, 3141592, 141592, 41592, 1592, 592, 92, 2, 31415926, 1415926, 415926, 15926, 5926, 926, 26, 6, 314159265, 14159265, 4159265, 159265, 59265, 9265, 265, 65, 3141592653

Offset: 1

Author

N. J. A. Sloane, Jan 03 2019

Keywords

• nonn
• base

Comments

Skip any "numbers" that begin with 0, except 0 itself.

Presumably this is a permutation of the nonnegative numbers.

All the terms of A011545 appear in order in this sequence. - Rémy Sigrist, Jan 03 2019

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000

Crossrefs

Inspired by A323036.

Cf. A000796, A011545, A322776, A154883.

Programs

PARI

pid=Pi; s=Set(); for (k=1, 10, my (f=floor(pid)); forstep (w=k, 1, -1, v=f % (10^w); if (!setsearch(s, v), print1 (v ", "); s=setunion(s,Set(v)))); pid*=10) \\ Rémy Sigrist, Jan 03 2019

Extensions

More terms from Rémy Sigrist, Jan 03 2019