A220656 The positions of those permutations in A030298 where the first element is not fixed.

3, 6, 7, 8, 9, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100

Offset: 1

Author

Antti Karttunen, Dec 17 2012

Keywords

• nonn

Comments

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.

Links

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

Crossrefs

Complement: A220696. Cf. A081291.

Programs

Scheme

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

Formula

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

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