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A054526 Triangle T(n,k): T(n,k) = phi(k) (n >= 1, 1 <= k <= n). 0
1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 4, 1, 1, 2, 2, 4, 2, 1, 1, 2, 2, 4, 2, 6, 1, 1, 2, 2, 4, 2, 6, 4, 1, 1, 2, 2, 4, 2, 6, 4, 6, 1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 10, 1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 10, 4, 1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 10, 4, 12 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..91.

MAPLE

seq(seq(phi(k), k=1..n), n=0..13); # Zerinvary Lajos, Oct 07 2007

CROSSREFS

Cf. A054521.

Sequence in context: A206498 A184848 A184720 * A113453 A245851 A230596

Adjacent sequences:  A054523 A054524 A054525 * A054527 A054528 A054529

KEYWORD

nonn,tabl

AUTHOR

N. J. A. Sloane, Apr 09 2000

STATUS

approved

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Last modified September 19 23:31 EDT 2019. Contains 327207 sequences. (Running on oeis4.)