A257573 - OEIS

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A257573

Exponents in A257278 = powers of primes p^m, p <= m.

3

2, 3, 4, 3, 5, 6, 4, 7, 5, 8, 9, 6, 10, 11, 7, 5, 12, 8, 13, 6, 14, 9, 15, 10, 16, 7, 17, 11, 18, 8, 19, 12, 7, 20, 13, 9, 21, 22, 14, 8, 23, 10, 15, 24, 25, 9, 16, 11, 26, 17, 27, 12, 28, 10, 18, 29, 30, 19, 13, 11, 31, 20, 32, 14, 33, 21, 12, 34, 15, 22

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OFFSET

1,1

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A001222(A257278(n));

A257278(n) = A257572(n) ^ a(n);

A257572(n) <= a(n) by definition of A257278.

PROG

(Haskell)

a257573 = a001222 . a257278

(PARI) apply(bigomega, A257278) \\ (A257278 assumed to be defined as vector). - M. F. Hasler, May 02 2015

CROSSREFS

Cf. A257278, A001222, A025474, A257572.

Sequence in context: A371280 A286448 A325277 * A182973 A360565 A278056

Adjacent sequences: A257570 A257571 A257572 * A257574 A257575 A257576

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, May 01 2015

EXTENSIONS

Edited by M. F. Hasler, May 02 2015

STATUS

approved