1,1

Correspondingly, gives the positions of those terms in A030299 whose first digit is not 1, as long as the decimal encoding system employed is valid.

Antti Karttunen, Table of n, a(n) for n = 1..5039

a(n) = A003422(1+A084558(n)) + A000142(A084558(n)) + A212598(n).

a(n) = A220655(n)+1.

(Scheme): (define (A220656 n) (+ (A003422 (+ 1 (A084558 n))) (A000142 (A084558 n)) (A212598 n)))

Complement: A220696. Cf. A081291.

Sequence in context: A189822 A051205 A168114 * A324143 A050244 A295566

Adjacent sequences: A220653 A220654 A220655 * A220657 A220658 A220659

nonn

Antti Karttunen, Dec 17 2012

approved