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A091332 Natural numbers written out with their digits grouped in sets of four (leading zeros omitted). 4
1234, 5678, 9101, 1121, 3141, 5161, 7181, 9202, 1222, 3242, 5262, 7282, 9303, 1323, 3343, 5363, 7383, 9404, 1424, 3444, 5464, 7484, 9505, 1525, 3545, 5565, 7585, 9606, 1626, 3646, 5666, 7686, 9707, 1727, 3747, 5767, 7787, 9808, 1828, 3848, 5868, 7888 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

PROG

(PARI) {c=0; d=[]; for(n=1, 99, while(#d<4, d=concat(d, digits(c++))); print1(sum(i=1, 4, d[i]*10^(4-i))", "); d=vecextract(d, "^..4"))} \\ M. F. Hasler, Oct 23 2014

CROSSREFS

Cf. A059805, A091331.

Sequence in context: A104971 A193492 A279204 * A210515 A122043 A179913

Adjacent sequences:  A091329 A091330 A091331 * A091333 A091334 A091335

KEYWORD

base,easy,nonn

AUTHOR

J. Taylor (integersfan(AT)yahoo.com), Mar 01 2004

STATUS

approved

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Last modified January 27 11:48 EST 2022. Contains 350607 sequences. (Running on oeis4.)