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A059805
Natural numbers written with digits grouped in pairs and leading zeros omitted.
12
12, 34, 56, 78, 91, 1, 11, 21, 31, 41, 51, 61, 71, 81, 92, 2, 12, 22, 32, 42, 52, 62, 72, 82, 93, 3, 13, 23, 33, 43, 53, 63, 73, 83, 94, 4, 14, 24, 34, 44, 54, 64, 74, 84, 95, 5, 15, 25, 35, 45, 55, 65, 75, 85, 96, 6, 16, 26, 36, 46, 56, 66, 76, 86, 97, 7, 17, 27, 37, 47, 57, 67
OFFSET
1,1
LINKS
FORMULA
a(2n-1)*100 + a(2n) = A091332(n); a(2n-1) = floor(A091332(n)/100), a(2n) = (A091332(n) mod 100). - M. F. Hasler, Oct 23 2014
MATHEMATICA
FromDigits /@ Partition[ Flatten[ IntegerDigits[ Table[ n, {n, 1, 77}]]], 2] (* Robert G. Wilson v *)
FromDigits/@Partition[Flatten[IntegerDigits/@Range[100]], 2] (* Harvey P. Dale, Feb 13 2025 *)
PROG
(PARI) {c=0; d=[]; for(n=1, 99, while(#d<2, d=concat(d, digits(c++))); print1(d[1], d[2]", "); d=vecextract(d, "^..2"))} \\ M. F. Hasler, Oct 23 2014
KEYWORD
easy,base,nonn,changed
AUTHOR
Kazimierz Kurz (kurzk(AT)prokom.pl), Mar 01 2001
EXTENSIONS
More terms from Jason Earls, Mar 24 2001
STATUS
approved