A125575 - OEIS

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A125575

Initial digits of prime squares.

4, 9, 2, 4, 1, 1, 2, 3, 5, 8, 9, 1, 1, 1, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	FORMULA	`a(n) = A000030(A000290(A000040(n))) - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 07 2007`
	MAPLE	`A000030 := proc(n) local idig ; idig := n ; while idig > 9 do idig := iquo(idig, 10) ; od ; RETURN(idig) ; end ; A000040 := proc(n) ithprime(n) ; end; A125575 := proc(n) A000030(A000040(n)^2) ; end; for n from 1 to 100 do printf("%d, ", A125575(n)) ; end; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 07 2007`
	CROSSREFS	`Sequence in context: A006830 A098174 A126709 * A199725 A021071 A197146` `Adjacent sequences: A125572 A125573 A125574 * A125576 A125577 A125578`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Anonymous, Jan 03 2007`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 07 2007`

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Last modified February 15 16:21 EST 2012. Contains 205823 sequences.