

A101272


a(n)=n, n <=6; a(n)=6, n > 6.


3



1, 2, 3, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6
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OFFSET

1,2


COMMENTS

Sequence of electron arrangements in the 2p, 3p, 4p and 5p atomic subshells.


REFERENCES

A. Beiser, Concepts of Modern Physics, 2nd Ed., McGrawHill, 1973.
R. M. Tennent (Editor), Science Data Book, Oliver & Boyd, 1971.


LINKS

Table of n, a(n) for n=1..105.


FORMULA

a(n)=n, n <=6; a(n)=6, n > 6.
Euler transform of length 6 sequence [ 2, 0, 0, 0, 0, 1].  Michael Somos, Aug 31 2006
G.f.: (1x^6)/(1x)^2.  Michael Somos, Aug 31 2006
a(n) = min(n,6).  Wesley Ivan Hurt, Apr 16 2014


EXAMPLE

a(6)=6.


MATHEMATICA

Table[Min[n, 6], {n, 120}] (* Harvey P. Dale, Mar 09 2014 *)


PROG

(PARI) a(n)=min(6, n) /* Michael Somos, Aug 31 2006, edited by M. F. Hasler, Apr 16 2014 */


CROSSREFS

Cf. A040000.
Sequence in context: A293705 A036055 A034151 * A006160 A071640 A102674
Adjacent sequences: A101269 A101270 A101271 * A101273 A101274 A101275


KEYWORD

easy,nonn


AUTHOR

Jeremy Gardiner, Dec 19 2004


STATUS

approved



