A391945 Sum of decimal digits of RSA numbers.

433, 469, 589, 620, 535, 652, 676, 721, 703, 790, 785, 811, 820, 806, 922, 901, 1009, 973, 1042, 1006, 1018, 1099, 1168, 1102, 1261, 1222, 1408, 1306, 1348, 1381, 1369, 1420, 1357, 1456, 1579, 1567, 1642, 1645, 1687, 1750, 1750, 1864, 1867, 1876, 1921, 2059, 2044, 2153, 2185, 2251, 2203, 2116, 2680, 2738

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Formula

a(n) = A007953(A391940(n)).

Crossrefs

Cf. A007953, A391940.

Cf. also A391944.

Sequence in context: A193141 A360652 A051964 * A142686 A052235 A165503

Adjacent sequences: A391942 A391943 A391944 * A391946 A391947 A391948

Keyword

nonn,base,fini,full

Author

Antti Karttunen, Dec 28 2025

Status

approved